List of German Pligg sites

Jul 3, 2010 by

List of German language social bookmarking sites powered by pligg. In this post I would like to share with you my list of German Pligg sites. The method I used to collect them was to search for two key expressions almost every Pligg powered site has: “veröffentliche” (means published) and “bevorstehende” (means upcoming). The below social bookmarking and social news site list contains 64 working Pligg sites (as of July, 2010).

I have only included those sites which might be useful for link building. As I don’t want to support spamming, I have not included those pages where I could see that the bookmarking site in question only collects sites from a niche topic, or where the site profile was more like a human-edited social news portal than a “do it what you want, we just installed Pligg on our site with a basic skin, without adding categories and such”. All in all this list is useful if you want to promote German language web sites.

Page Rank 3 German Pligg Sites

PageRAnk 2 Pligg sites in German

German Pligg sites with PR 1

German Pligg sites with Page Rank 0

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List of Bookmarking Sites Powered by Pligg

Feb 11, 2010 by

Despite that at the end of this post you will find a filtered and somehow manually edited list of Pligg-based social bookmarking sites, this post is rather about some tricks which can help you to quickly evaluate the quality and freshness of any directory list you find on the internet.

Finding a good list of Pligg sites

I have previously attempted to find a comprehensive and organized list of social bookmarking sites, but I just couldn’t find a sophisticated collection of these sites similar to a quality directory list for instance like info.vilesilencer.com has. This time I have decided to look for a list based on the type of the Social Bookmarking CMS. Although there are other specialized solutions for creating a social bookmarking site (like PHPdugg or Scuttle), the most popular of them is the Pligg CMS, so I have decided to seek a list of Pligg powered sites.

I have came accross some sources which listed a few hundred of Pliggs or other sites which wanted to sell me those lists for a few bucks, but what seemed for me the most promising at first sight was published in a forum thread and referenced from many other forums: this post stated that there are 9000 Pligg sites listed there.

Evaluating the available lists

As I was randomly clicked in this list quickly realized that there are many dead sites and parked domains listed here. Nevertheless I have copied this list and realized that instead of nine thousand, the list contained only about 1735 links. I have removed the unnecessary endings (/register.php for example) and also cleared the www. subdomains to have a list of domains only.

Removing duplicate entries

As I sorted this list with OpenOffice Calc, I found out that there are many duplicate entries in this list. Having pruned the duplicate rows from this list with this method the list shrinked to 1548 sites.

Retrieving Page Rank values

Then I fed this list to Alex Polski’s very handy Mass PageRank Checker (run on my own notebook with MAMP) to check the Page Rank values of the listed sites. The idea behind this was that if a site cannot get PageRank value in almost one year (or simply have lost it since the original list was published), then it is a waste of time to deal with that site. Therefore the next step was to sort the remained list by Page Rank values and eliminate those which had PageRank zero values: having removed these sites not respected by Google I ended up having a list of only 453 sites.

Checking Pligg specific URLs

The third step was to check whether the sites in question are still powered by Pligg. To validate this, first created a HTML page from this list where the links were pointing to the /upcoming.php URI, so I have added this to the end of every listed site. Since (hopefully, I am not a Pligg expert) all Pligg sites have this subpage, with this trick, I could identify the pages which are powered by pligg. Then I opened this HTML file with Firefox having the Firefox Link Checker Add-on installed and activated. This add-on simply goes through all links present in a web page and gives them different background colors and a title element to all links based on the results of the link check (with Valid, Invalid, or Forwarded status). You have to wait for a while until LinkChecker does the job, but when it finishes, you can download the web page annotated by this addon. Note: This step also could have been done before the mass page rank check.

The final step was to copy into the spreadsheet the annotated html file next to the remained list: sort it by the column which was copied from the html file and remove all those entries where the status was not “Valid link”. At the end of this process the result was a list of 271 Pligg sites what you can download from here.

Manual check of the listed sites

Having clicked on some random links listed I had to realize that the result of the latter step accomplished with the Link Checker add-on was far from satisfactory.  Some domain parking systems for instance will not give you 404 Not found error no matter what URL you request, therefore — if a parked domain still maintains its Page Rank value — these cannot be filtered with the above described methods. Therefore I decided to click through all the listed sites, and check all of them manually. At the end of this painful last step the real list of Pligg sites extracted from the original list has only 154 sites. (see below)

What was not validated?

  • Topic: Many pligg powered sites are dedicated to collect links from a certain niche topic of only those links which are written in a foreign language. To decide whether a site is useful for general link building since it accepts submissions from all topics (or languages), you should visit these sites one by one.
  • Dofollow/nofollow: Unfortunately I don’t know a good automated methot to check whether a Pligg site is dofollow or nofollow.

Conclusion

  • If you see somewhere that a certain list has many thousand sites, do not believe it automatically (see 1735 vs. 9000)
  • Things can change quite fast: a list published ten months ago can became rather outdated.
  • A long list does not automatically mean quality list: in this case many sites were already broken at the time of publishing (see comments at the original thread).
  • No automated tests can provide the same performance as the good old manual check procedure.
  • Pligg sites with good page rank values most likely concentrate on niche topics or on a foreign language. For instance one of the listed PR6 Pligg sites is a non-English site with Joomla related news, while the other is a Turkish site (which are useless for many of us trying to avoid spamming these social bookmarking sites)

The manually checked list of Pligg Sites

Page Rank 6

Page Rank 5

Page Rank 4

Page Rank 3

Page Rank 2

Page Rank 1

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Lists of Social Bookmarking Sites

Jan 15, 2010 by

Recently I have been spending quite much time with testing the effects of a link building done exclusively with Social Bookmarking sites. That’s the reason why I wanted to find some good lists of dofollow social bookmarking sites. And since a few weeks I am still in a need of a(n almost) perfect social bookmarking site list.

Simple social bookmarking site lists

First I started with an appropriate search expression which led me to sites like Socialposter.com. The problem with the list this site features is that although I could filter this list by dofollow/nofollow or social news/social bookmarking sites, 79 is not a big number when it comes to submitting links to sites where you can normally get only a relatively low value link.

Why I went through this list I realized what’s the difference between a social news site and a social bookmarking site and especially what’s the difference between a site under strong editorial control and an other site with basically no anti-spam measures. Finally I have opted for the latter category since I wanted to promote non-English content with this method.

Social submitter software tools

Later when I found a similar site called SocialMarker or something similar, I came across an ad of a social submitter software. There I could find a bit more extensive site list perhaps. First I have got to a special landing page which was created by the worst online marketing standards with yellow highlights, strong dashed borders and long list of testimonials and other bullshit. Finally I got the developers’ page (SEO Dev Groups’ Social Submitter) where I could download a plain list of the social bookmarking sites this software works with from here.

But before I found this PDF file I have came accross an other Social Submitter service, which is Social Maximizer. Unlike Social Submitter this is not a DIY tool but you can purchase individual submissions for a few cents with this system. This is just a side note because before I decided that before using a mass submission tool, I would do something manually, just to see a few social bookmarking sites and get some overview of this niche market.

Social Maximizer offers also a public list of the Social bookmarking sites where you can submit your web sites to: it is slightly better than Social Submitter’s — althoug URLs are not clickable, you can see the Page Rank values which can help you to decide whether to open that URL at all. (I didn’t want to use Page Rank 0 sites in the beginning.)

Now that I found a bunch of sites to work with, I guess my quest came to its end, therefore I will never find any similarly usable social bookmarking list to some of the directory lists I have already worked with. Maybe this is a sign that the social bookmarking sites are much less useful for link building, therefore no one was interested in compiling a really great resource?

Non-English social bookmarking sites

During my search for different social bookmarking lists I have found a (mainly) German Social Bookmarking site list with 78 sites included. Unfortunately I could not discover better lists than this. Then I had an idea of looking for bookmarking sites in smaller languages, but it was the (almost complete) lack of these sites was a bit disappointing. For instance the biggest Czech social bookmarking list was this I could found (already including some international sites). Having a dozen of social bookmarking sites in a country is not that much, but later I realized that this is not unique to Czech and Slovak languages, because there is only a dozen of Hungarian social bookmarking sites at the time of writing as Turbobookmark.com presented. This is an otherwise interesting concept, because I have nowhere seen a multilanguage bookmarking site submitter.

Bookmarking site lists by CMS

While doing link building on these sites I have quickly realized that the majority of these sites are powered by just a few CMS-es like Pligg or PHPDugg or sometimes Scuttle. Although I could not find any usable directory lists previously (show me a directory of PHP LD powered directories!), I was still hoping to find a good list of Pligg-powered sites for instance. I haven’t spent much time searching but the only thing I came across was this 108 Different Class C IP PHPDug Site List.

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