FairyBBS
A forum based on django
Python is a programming language that lets you work more quickly and integrate your systems more effectively.
Free and open source software (F/OSS, FOSS) or free/libre/open source software (FLOSS) is software that is both free software and open source. It is liberally licensed to grant users the right to use, copy, study, change, and improve its design through the availability of its source code.
A forum based on django
An open source URL shortener built with love using TornadoWeb / Redis / PureCSS / ZeptoJS
Django Yarr - Yet Another RSS Reader : A lightweight customisable RSS reader for Django.
google reader clone in go on app engine http://www.goread.io
The source of http://collipa.com, a very nice forum like v2ex.
3n1b.com {叁年壹班} is a bbs for university, Inspired by f2e.im and v2ex.com
SimpleBBS is yet another V2EX clone script. (the demo site was down and we can not get the snap shot, but we get some info from google cached page as snapshot)
June is a forum project. it is inspired by V2eX
A Community Web App like V2EX, Using Flask framework. soucecode of website http://feather.im
iRedMail is A ZERO COST, fully fledged, full-featured mail server solution. All used packages are free and open source, provided by the Linux/BSD distribution venders you trust. it is an open source project, released under GPLv2
F2E is a community for front-end-developer.
PBB is a simple forum like V2EX