http://www.hdforums.com/ is an awesome resource for Harley. Any question you have has likely already been asked there many times. Try a google search of a question you want answered and odds are it will show you a couple threads from HDForums.
Keep in mind though that any bike specific forum will be bigger proponents of their maker/model than anywhere else...they're on that forum for a reason, because they bought that bike. If you go to a Yamaha or Kawi forum you'll no doubt find an overwhelming number of people that make a convincing argument for their bike over any other (and hate HD).
Do not buy into the B.S. that a bike not made by Harley is not a real bike. Yeah, I ride a Harley Roadking Classic, but I chose mine mostly based on looks and the number of aftermarket parts available to make it my own. I strongly considered a Victory and a Kawasaki...Yamaha, BMW, and Indian are also getting lots of attention in certain segments for good reason.
Feel free to PM me if you have questions..or I'm sure people here will be happy to help. I've only been riding for 2 years and before that had zero desire to ever ride a bike let alone own one, so I remember what it's like to feel lost on where to start.