http://www.militarymorons.com/
General good site for reviews on state of the art gear, or otherwise very new gear
http://www.geocities.com/sabresquadron/
Older site, some decent pics
http://www.specwargear.com/
A good starting point if your just getting into US gear, not all information is very detailed, but general pics and ideas about gear
http://www.wannabe.uk.com/
A british gear lover, his site is well done, much like his impressoins
http://www.militaryphotos.net/
Use this site as a reference point to what guys are wearing in the real world
http://www2s.biglobe.ne.jp/~BOMBERS/
Japanese geardos, good stuff as usual!
http://www.aggressor-group.com/
Good retailer, we cant buy from them, but they have pics of very rare and hard to find gear from certain retailers like LBT, use them if you want good pics of something to buy in North America
http://www.special-warfare.net/data_base/index.html
This is probably one of my all time favourtes since Specwarcom closed down. They have amazingly detailed pics of their impressions, a large area with pics of every piece of gear they use. Its Japanese, so use a translator, they have tonnes of great guides too about various stuff, like making a good SOPMOD aeg with reviews of all the aftermarket kits and what the best ones are.