It's funny that no one has mentioned Morphzone. I use this sometimes and have an account there. But i don't post anything there. I've been debating for about a year whether or not to but a PPC mac mini just so i can use Morthos. Unlikely to happen anytime soon though. Today i just bought a PS3.
For many years Amiga.org was the home page of any browser I ran, but for the last 2 years MorphZone.org has replaced Amiga.org as my home page setting, but I still visit here almost every day and most days I visit here several times a day/night. Although I think that all Amiga related forum sites have gone down hill in quality of posts and generally become much more hostile with members always fighting with each other, Amiga.org is still the best Amiga site to get quick and accurate answers. My OWB start page is Amiga.org with its home page set to MorphZone.org, so after starting here, I just hit the home page button to go from A.org to MZ.org. AW.net has become too negative for my liking and I have been thinking of spending more time on EAB.
@Kesa,
You will probably like MorphOS2.7 if you ever have the chance to get yourself a supported PPC Mac to run it on. The nice thing about MorphOS2.x is that you can try it out for free before you buy it, so if it is not for you, you can always just use MacOSX, or Linux on your PPC Mac, or just sell it for what you paid for it, assuming you get one at a good price. I was lucky to find one of my G4 Mac's for less than $31.00 with extras that I could sell for more than that, so I essentially got that G4 Mac for free. Depending on where you live, you should be able to find an older G4 PowerMac for very little, or maybe free, if you look long and hard enough. Good luck if you decide to search for one.
