Hubski is a social networking and discussion site, built by Mark Katakowski. A month after creating the site, Katakowski was joined by Steve Clausnitzer, another Ann Arbor resident. Hubski has been designed as alternative to Reddit. In addition to sharing content from around the web, users are encouraged to share their own original content. Hubski started out as a clone of Hacker News, and is still written in Arc, the dialect of Lisp created by Paul Graham.