The definitive guidebook for climbers in the UAE. It actually covers quite a few areas in Oman as well. See Toby's map to determine what's covered.

Locally, you can purchase the guidebook at the Go Sports in Ibn Battuta Mall and the Mall of the Emirates. If you can wait, you can buy it online from Book Depository (free shipping!) or Amazon UK. 

Updates and additions to UAE Rock Climbing are available from Toby's website.

Theo Giani's site, with updated topos covering many of the routes he has put up.

Author: Jacob Obenhauser

Not-really-quite-officially-published.

See these threads: Guidebook, guidebook situation

This site has several (somewhat dated) topos for areas in Oman relatively far from the UAE.

As of 2013, the "forum" with the most traffic, but as usual, has a lot of "faff", as they say. Requires administrator approval.

A slightly less trafficked forum.

Was once a good place to ask questions and find partners, but now seems to be declining and poorly maintained (much like this site!). Check out this introduction to climbing in the UAE.

A relatively low traffic forum with an annoying tendency to split up the forum into too many categories. Good luck getting an account if you want to post. However, it does have some useful information, including many topos for areas in Oman.

Global Climbing (Facebook)

UAE and Oman Rock Climbing and Outdoor Adventures (Facebook)

Climbers might also be interested in caving (which is a surprisingly excellent hobby around here). MECET (Middle East Caving and Expedition Team) is an informal organization that has trained a few generations of cavers. Check it out.