In my mind, Spaces was a pivot to a completely different market. My primary Tumblr is a photo blog, but my Posterous is a place where I share things privately with friends. Posterous has become a sort of Facebook alternative for me, and I really don't look forward to seeing it shut down.

Tumblr is definitely very successful but Posterous had a lot more 'serious' content. From my perspective, Tumblr is mainly for 'cool kids' showing off and a lot of it is only 'reblogging'. Posterous had actual 'blogs' and 'articles'. Sure that reputation/standing has some kind of value too?

I wonder if the name posterous was a poor choice? Sendblog or zenblog might've been better.