You can find forum with the help of these formats: inurl:viewtopic your keyword Powered by Phbb your keyword Powered by vBulletin your keyword Powered by SMF your keyword Phbb your keyword powered by IPB your keyword MyBB your keyword powered by PunBB your keyword And for blogs: "powered by wordpress" your keyword "leave a comment"your keyword "reply to post" your keyword " leave comment"your keyword "post a comment" your keyword "post comment" your keyword Hope That Helps all here...
With blog footprint, you have to put your keyword for searching in Google, you would get relevant sites, no doubt to it... But I would say that use only quality sites,there would be some spam sites too, you should ignore them, for better result.
I'm finding that forums are getting stricter about backlinks. So be careful when using forums for backlinking purposes. Use them instead for engaging and builsing trust with the community. If they tend to trust your judgement and advice, over time people will likely visit your blog or website and become loyal followers.
Exactly, today this is the main marketing method, work for users, people, help to the society and it would help you..