Do you remember the project "map of sites of similar subjects"?

Question

Computer networks

There was a post on Habré about 2 years ago about a project that displayed a cloud of sites, where the size of the cloud depended on the audience, and these circles were located according to the similarity of the audience, so I found out that Habravchan read dirty.
Now there is a task to highlight sites on the subject of real estate, but not like in accounting systems, but in exactly the same bubble way.
On this question: I'm looking for a link or the name of the project.
Thanks in advance