I've been interested in real-time terrain rendering for quite a few years. You can find some of my project related to this field in this article.

Recent info - blog posts tagged 'Terrain Rendering':

• Multilevel Geomipmapping Program + Sources Released Posted on: May 5, 2014
• Android Terrain Rendering: Vertex Texture Fetch, Part 1 Posted on: October 28, 2013
• Terrain Rendering Demo for Android Posted on: July 4, 2013
• Porting glSOAR to Android and OpenGL ES, Part 2 Posted on: November 12, 2012
• Porting glSOAR to Android and OpenGL ES, Part 1 Posted on: November 12, 2012

List of older terrain rendering projects:

• Multilevel Geomipmapping
• SOAR

If you're interested in terrain rendering, there's a list of some popular algorithms at VTerrain project.