what,s is weong with my blogs when i post new content for them,new posts are speedly indexed,but after 2,3 days google dont find this posts and only find new posts and 2,3 of previous posts,and i gets only visitors for new posts, what should i do,for idexing all of them?? is this relate to putting many ads in my page and betwwn posts?? i dont think so because i have tested different states. http://dlrapidshare.blogspot.com/ http://dlmusichere.blogspot.com/
maybe if you can get a few inbound links to those post from technorati and other places then they will remain in the index, it might be because it only has 1 page linking to the posts.
Make sure you don't change the text or title once the post get indexed, this might be one of the reason you won't find other posts if you do changes. Also consider adding unique and quality content.
I think this is pretty common, G loves new content but then it will fade with time unless you provide links to it.
It is quite natural, I had blog posts indexed in 3 minutes but the homepage got refreshed after 2 weeks.