Like if you want to find forum website where people talking about Weight Loss then you can search with those line in Google
"Weight Loss" "Powered by PHPBB" inurl:fourm
"Weight Loss" "powered by vBulletin" inurl:fourm
Also if you want to find out some blog commenting website then you can try this type of footprints
"powered by wordpress" "leave a comment" "You may use these HTML tags and attributes:"
"Weight Loss" "Powered by Disqus" "Sort by Best" "Add Disqus to your site" "Privacy"
and lot's of footprints are available in internet. With footprints you can also find directory submission website, article submission website, guest blogging website, .edu, .gov website, dofollow blogs and more. So it's really better idea to learn how to make footprints and make your own custom footprint for scraping powerful related website where you can insert your website link for backlinks.
Another way is using some tools where you don't need to remember those huge footprints. linksearching.com is one of them. You can find lot's of website where you can build your backlinks. Forum, blog, articles, web directory, guest blogging and all popular category are listed in this website. Just put your keyword in search box and select your backlink type. They generate footprints automatically for you and search them into google and you will get lot's of relevant website in a min. I think this tools can help you a lot.
So don't believe in 100+ old directory website list. Those day's are gone, because those website don't have any good value for good ranking. Use footprint in google and search latest and valuable website for linkbuilding..







