To my knowledge, this is one of the largest and most respected photography forums online:http://www.fredmiranda.com/forum/
And if you're serious about photo editing, you need to have one of the better digital processing programs, like Photoshop or Paintshop Photo Pro or even Photoshop Elements. If you don't want to spend hundreds of dollars on them, look on Ebay for an older version of one of the programs; they have most of the basic features of the newer versions. Or I think Gimp is still a free download; I've known a lot of people who use it exclusively, but I haven't tried it. I use new versions PhotoShop, PaintShop Pro, and Corel Painter, but then I've been at it for a number of years.