Unlimited backlinks from these google query footprints

Use these footprints,you can find unlimited backlinks source:

pligg site footprints

“Powered by Pligg”

inurl:”Pligg beta”

inurl:story.php inanchor:upcoming

allintitle:store share and tag your favorite links

edu forums sites,gov forums sites

site:edu inurl:login (Create an account)

site:edu “powered by vbulletin”

inurl:.edu/phpbb2

inurl:.edu/ (Powered by Invision Power Board)

site:edu “powered by SMF”

For competitor backlinks yahoo lookup:

linkdomain:competitor.com -site:competitor.com
cbox sites:

allintext:[get a cbox]

Oggix.com sites : intext:”by. oggix.com”

If you know any other footprints,please do share on this thread to contribute.
I think we still need :

Top comments blog footprints

Commentluv blog footrpints

nofollow free blog footprints

keywordluv blog footprints.