I'm considering jailbreaking my iPad 3 and was looking for advice on what to do and wheres the best place to look. Ive tried google but a lot of sites are mentioning surveys and other ads. Currently running ios 6.1.3

thanks in advance

not sure there is one for 6.1.3, there definitely is for 6.1.2 though
http://evasi0n.com/ is the site that released the current jailbreaks.

There is no jb for ios 6.1.3 or 6.14, so your device has no jb possible yet. There is no jb also yet for the io7 dev betas.
There is a semi-tethered jailbreak for 6.1.3 for iPhone 3GS, iPhone 4, and iPod touch 4th generation (which have low-level bootrom exploits available that permit semi-tethered jailbreaking on any iOS version).
The major jailbreak developers intend to wait for iOS 7 before trying to build a new jailbreak.

A good faq site here
http://www.jailbreakqa.com/