Relevant Links:
For the user:
Omnivision Technologies
Linux-USB Homepage
which has info on configuring your USB support, and has USB mailing lists.
Video for Linux Resources
(tons of V4L-related links)
An excellent page
on setting up an Internet webcam using Xawtv.
For the developer:
New USB API
Video For Linux API documentation
(from 2.5.15 kernel)
Video For Linux 2
(new version; partially supported by ov511)
Video For Linux 2
(old version; not supported by ov511)
Other drivers:
OV511/OV518 drivers
for
Windows
and
MacOS
MacOS X drivers
for various webcams
OV511 Driver
for
FreeBSD
CPiA webcam driver
(For parallel-port WebCam3 and some USB cams)
W9967CF/W9968CF driver
for Linux (used in Creative WebCam Go)
Divio NW802 driver
for Linux
SPCA50X driver
for USB cameras with Sunplus chipset
Older page for SPCA50X driver
DROPS
(Dresden Real-time OS; includes a port of my driver)