Once you know these then finding the sites is peace of cake.
Now I said the platforms are by default have those signatures, but what if the social bookmark sites' owners decided to remove them?
They will actually, most of the sites that you can find using the above method would be sites with lower PR, most is 3 or even 4.
This is how you find sites from "more serious" owners and the chance to get higher PR social bookmark sites,
You need to identify a unique url in each platform, for example:
In Pligg, they have a function for searching stories, they use the following url:
HTML Code:
hxxp://socialbookmarksite.com/shakeit.php
Then you would use it in search engines like this:
HTML Code:
inurl:/shakeit.php
Other examples:
PHPDug:
HTML Code:
inurl:/upcoming/0/viewall/1.html
Scuttle:
HTML Code:
inurl:/populartags/
Play around with the methods, you can collect as many social bookmarking sites that you want.
The methods work for just about anything with similar platforms.
Suggestions
You can use any search engines for this, but I prefer yahoo instead of google.
Google can stop your search with a reason that your search is similar to how hackers/viruses work.
Use pagerank and/or ******** tools like firefox addon searchstatus to help you in your search.
If you just want to collect the sites just do it, check the PR later with digixmas' pagerank tool (bulk pagerank check).
If you have other suggestions on searching social bookmarking sites, please share here.
Read up date article about SEO here
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