I tend to use My Little Wiki to find out about older ponies, but it's probably not the very best site to look at due to, indeed, cataloging. Still, it's pretty comprehensive when it comes to toy releases up to G3.5 and G4 (which is fine, because most of the time you probably won't be looking at these two sections). Strawberry Reef now has a G1 section that's sorted by colour and its G3 section can be searched using colour or pose, but it doesn't have a G2 section to look through.

Incidentally, that pony is called Glory, and I'd be happy to identify some other ones for you.

my little wiki or this?:
http://strawberryreef.com/

Dream Valley is probably the best for finding out who your G1 ponies are http://www.kimsites.net/dreamvalley/identify/identify.html