I can’t remember how I landed on scribd but somehow I ran across the other day. It’s a basic site to post writings that may or may not have images and other formatting possibilities. Instead of blog, it makes room for any type of entry, and some people are posting research papers.
The community is relatively small right now (a little over 6,000), but the interface is cool and offers a variety of fascinating “real time” analytics. Like the map below of the viewer locations.