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I'm also semi-active on the rec.music.makers.guitar.jazz newsgroup, which I access through Google Groups. It's a great way to take the pulse of what's happening in jazz guitar, and quite a few pro players participate in what is, for the most part, a lively and civil discussion.
At left is a 1976 ES-175T, the relatively rare, thin version of the ES-175. I got this picture from eBay. My 1976 ES-175D, which I bought from Betnun's Music in L.A. in the early '80s, is the full-body version and has the rosewood bridge (the guitar at left has a metal Tune-o-Matic).
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Here is the side view of the thinline.