Here are some auto linked words that apply only to NTP forums

Aperture
Comp
Competition
Competitions
Composition
Composure
Dictionary
Exposure
f-stop
f/stop
Flickr
ISO
jpeg
lens
lenses
Light
Metering
Light Meter
Meter
Memory card
Memory cards
Monopod
Raw
Rules
Photobucket
Sharp
Sharpening
Sharpness
Shutter speed
Shutter
Sunny 16
Tripod
Workflow
Pentax
Nikon
Canon
Sony
Olympus
Sigma
Tamron
Google