i did some blog comments in the past two weeks. but i found only 20% was found by google, then , the rest is lost. i am in doubt and do not know why? anybody can offer your idea?
It takes Google quite a while to find and list backlinks. Use Yahoo Site Explorer to check on your backlinks. Also Google will hardly list any nofollow tagged backlinks. So make sure you are commenting on blogs with dofollow links. If your comments looked kind of spammy to the blog admins so they might have deleted your comments. Check on it!