Few days before I got my blog on top 10 for the keyword "legitimate work at home jobs". But after some day it comes to 20-25 position and just like this my blog rank was up and down on SERP. But now my blog is totally invisible on google for that keyword. Please help me what happen actually.
Maybe when you see your blog ranking for "legitimate work at home jobs" your blog has a new post about that topic. or maybe you're not building links for your blog.
You should monitor comments from your blog regularly. I see lots of comments on your blog linking to porn sites or drug sites. When Google finds such links on your blog, it is definitely going to penalize your blog.
That's a really good observation, I like to see that in the forum. Also, if that doesn't help then understand that when your site is newly ranked for a keyword it doesn't necessarily solidify your position there. Now you've got to work on keeping it there and establishing it as an authority.
My blog is now top ten for various keyword on google. I really surprised that my blog get lots of traffic from keyword "google home affiliate programs" and my blog is on 2nd position for that keyword.