I've seen dozens of people selling service for building tons of profile backlinks. I also bought 200 few months back. but Im not sure, do they really work? if yes then what is their weightage with other kinds of backlink eg blogroll etc
its a good idea to try and avoid sitewide links in blog rolls, i persoanlly dont make blogroll links anymore and if i must then i do not anchor text them - you always need your link in as much original content as possible - thus if you are making a football link and on a sports website, you want to choose the pages of the site that talk about football - dont just go sitewide and think that you have it covered with a single anchor, your wasting a link there.
Profile backlinks do no good to your site. It is just a waste of time and money. These cheap links do not add any value. I would suggest stay away from them, instead invest that money in some good PR links. Just 1 good PR link is equivalent to 1000's of profile links.
Don't listen to the poster above, obviously (s)he has no knowledge in terms of backlinking. The last thing you want to do is avoid profile backlinks, I mean sure, high PR backlinks are valued a lot more, but profile backlinks are like icing on the cake. I know websites that have ranked well with only profile backlinks, however I don't recommend that as I know Google loves a large variety of backlink sources. People can prove that profile backlinks work, by showing you websites where they've mainly used profile backlinks to boost rankings, however you can't prove they don't work. Just because someone used some profile backlinks to a page and it didn't rank as good as they thought, doesn't mean another person couldn't use different profile backlinks (often people who know what they're doing), and rank a lot higher. Just my 2c though. Sources include myself, friends, competitors.
Would you like to give this a try and let me know your thoughts, its a free service. backlinkgenerator dot net. THANKS.