Problem with tumblr indexing

Hey guys,

I recently noticed that a lot of my blogs (for seo purposes) which are on tumblr are not showing in search. When I checked, i saw they are not indexed, is there some kind a new policy or smth? I recently saw this in livejournal.

All blogs are with one unique 500+ article. They all have been blasted with SB 10k list.

Pardon my english, doing my best.

I do notice some of my web 2.0 properties not being indexed these days as well. They used to get indexed within 24 hours. Its now more than a week for me.

Nevertheless, I still do SB blast on them. I wonder if that will pass the linkjuice to my money site?