GitHub announced that it has reached 3 million members during the company’s Winter business summit. The repository for open source code raised $100 million in funding from Andreessen Horowitz last year.

Founded in 2008, it took until September 2011 for the site to reach its initial million users. The site has grown rapidly since then and now over 5 million projects (including wikis and tutorials, slide hosting services and other social features for programmers) are stored on the network.