Most of my stuff involves D&D, and here is a small part of what I have on line.
This is about 50% of what I have in my house, then I have a lot more in storage boxes out in my garage.
The first pic, from left to right, has one of my Wilderlands boxed sets, then Hamanaptra from GR, and then many GR products (Guess I should properly identify some of these, Spiros Black, Eternal Rome, Testament, Mutants and MAsterminds to name most), mostly Freeport and some True20, with a Legacy of Excalibur thrown in there because I like using it with True 20, that big thick book is a compilation of Arduin adventures, or maybe thats the Khas World Book? Yeah, I think that is the Khaas World Book. Then 2 DCC 51's, Castle Whiterock, then one of my City of Brass boxed sets.
Horizontal above that is Dawnforge and some of my Harn stuff, the big box is Harn MAster, plus some Flying Buffalo products. The stuff on the same self and to the left is much of my Free RPG Day materials over the last couple of years.
On the next shelf is most of my WOTC tiles sets that I have not opened. Then a couple of C&C items, then its my Compendium of Fight On! magazine. Then it looks to be much of my Judges Guild, much of which was recently acquired from Geoffrey over on DF, plus Knockspell and Kobold Quarterly is in there. I also bought most of my Arduin from him as well. Next is one of my 1E PH's and then a Fiend Folio. I am not sure what is next, I think it is one of my Epic RPG books. Then it is 3E OA/Rokugan materials, then Arcana Unearthed, then one of my 2E class handbooks, then my Winter Runes, then both copies I have of Yggsburgh. I thought I had 3, but have been unable to find it if I do. Next is one of my copies of City State of the Invincible Overlord (3E), then the rest is my Legend of the 5 Rings books, most for the current edition.
On the left of the third shelf is the awesome Ultimate Toolbox, full of over 1,000 tables of gaming usefulness and inspiration. Following that is a big chunk of my C&C stuff, going all the way over to my Arcanum books, and what looks to be another EPIC rpg book. Then Bards Gate, lead author being the same dude who does Haunted Highlands. Gamed with him at GenCon 06 and Troll Con VII. Got him to sign his Nautarus (sp?) book too. Which I think is already squeezed in with the C&C stuff to the left. Then we have the Dragonlance D20 collection (with the original Adventures book in there), all of the D20 stuff being bought from Danger Dwarf a few months ago. There is my copy of Rules Cyclopedia, that I got for like $19. My Paladium Arms and Armor book. The rest is more Arduin stuff.
The next shelf is a hodge podge, primarily sci fi, though. It starts off with Alchemy and Herbalism, then Paizo and Goodman stuff, I believe those are my Goodman 4E modules of Punjar, maybe the others too. Then it is my copy of Shackled City. Then a couple of Gary's World books, XRP's MMS: Western Europe, Silk Road, and Ecology? Then we have several of my Flying Buffalo City books, yes, that is what all 4 of those are. Then we have Green Ronins new RPG, which I believe you can read well enough (Song of Ice and Fire), a couple of my Warhammer RPG books, Shadowrun 4E, Alternity PH, Star WArs D20, and then much of my Traveller Collection, especially the Mongoose version, followed by much of my Mega Traveller and GURPS Traveller, and the shelf wraps up with even more Arduin stuff.
The very top of the book case I believe is easy to identify.
The last two pics are of the same shelf, and I think most, if not all is identifiable as is.