http://solarsystem.nasa.gov/planets/profile.cfm?Object=Venus
NASA's Solar System Exploration site features an overview, details a gallery, facts and figures, and education links for the planet Venus.

docs/venus_earth_sun_fact 2.pdf
Venus-Earth-Sun Fact Sheets in US and Metric Units

http://www.solarviews.com/cap/index/venus1.html
Collection of images of Venus, including transit photographs and spacecraft images; from SolarViews.

http://www.nasa.gov/mission_pages/messenger/main/index.html
NASA Messenger spacecraft to become the first to orbit and study Venus, with abundant related resources from NASA.

http://www.nasa.gov/multimedia/imagegallery/image_feature_1836.html
Mosaic of radar images of Venus. Image and description courtesy of NASA.