I have gone through the process of setting up a Tumblr account and page and it seems to be a dofollow page as well.
The question is what is the value of this site or better put links from this site. Put another way is it any better or worse than Squidoo or Hub Pages?
I know or understand that web 2.0 sites are losing their link juice largely because they are seen to be self generated so worthwhile or time better spent elsewhere?