Web 2.0 is commonly used to refer to Web sites that allow heavy participation and content from users. We’ve previously blogged about Scripture Tag, which allows users to “tag” scriptures with keywords, and Sustain’d, a Mormon version of Digg.
Stewart Foss has a post about the Top 10 Mormon Web 2.0 Sites, with room for 3 more. Another Christian Web 2.0 site of which I know is eBible.com, which allows users to tag and share verses from the Bible.
Here is a list of Five Ideas for Christian Web 2.0 Sites and a few more which could also inspire Mormon developers.