Being a bit of a tech-head, I find that sites like www.engadget.com give me information on the bleeding edge of technology so that I can see what may be coming in terms of dental innovation (usually 1-2 years down the road for commercial products.)
The site is written with some dry (and not-so-dry) humour... I quite like it :)
A neat sample of their work that relates to dentistry is this article (in 2005) on toothbrushes that can conduct music through your teeth and bones to your ears.
Take Care,
Hans
Hans Skariah, B.Sc., DMD
Promenade Court Dental Health Group in Mississauga
2233 Hurontario St., Mississauga, ON, Canada
(1/2 km north of the QEW in the Dome Building)
(905) 273-7100