I don't know how to build wiki link but link building through blog commenting is too easy. At first make a list of relevant blogs and then comment on every blog post. while posting comments drop your site url or the url you want to promote and on the name box type keyword related to the url you are promoting. Thats all...
I recommend not to type your keyword or anything related to your keyword for the
name box.
The name box should be for the blog commenter's
name so just make a fake one up each time.
You'll get a better approval rate by the comment moderators if they at least see a name in the name box instead of "Name: Make Money Today".
Try not to put your URL in there like it's spammy. Make it seem like it's
part of the blog comment.
Do not do this:
"Hey guys, thanks for allowing me to read your post. I really like it and think you have a talent for blog article creation. Please visit my website at http://VISITMAHWEBPAGENAO.com. Again, really like it so visit this --> http://VISITMAHWEBPAGENAO.com"
Instead, do it like this:
"Hello guys, I really like the blog you have going on here. While I was searching around for _____, I also found this website (insert URL) to be just as useful. Both yours and the website I found (insert URL) are found to be of good use.
Thanks friends!"
TIP: Don't add too many links in your blog comment, although it's a good idea to put your website in there for relevancy. Diversify! That means for every blog comment you do, it should be different (# of links per blog comment, names, anchor links, etc.)