Unidentified models?

Google search is your friend

Google IMAGE Search is even friendlier! :)

However, not all results are reliable. In other words, a single site may be not enough.

I meant image search. I can usually find names for models and larger copies of images. Unfortunately, many copies have been upsized from fairly poor originals. Still, run through each entry in the list. There you can find larger sizes that are good quality.