About Research Pipeline
Devoted to the culture of free online data.
There's a data wiki. Links to free online datasets. Data processing software. Data-related resources and journals.
There's also a blog.
I started the Research Pipeline website as a hobby. I have been compiling lists of online datasets for awhile now. It seemed like a nice idea to throw it all up onto a website where users can search using keyword terms to find what they need.
If you get in touch, you could also upload your own datasets for free. Try sending a message by leaving a comment on the blog.