I joined flickr.com, as you can see from the left side-bar. I even paid for a 'pro' account (primarily so that I can upload my photos fullsize), and I don't regret it.
Then I found the Sony α group and started reading their forum. Guess what, about 60% of the posts appear to be 'what new kit should I buy to shoot X' (where X is some broad category of work, like sports, or nature, or sunsets), and most of the answers are: spend £hundreds (at least) to get some specialist lens, filter system, tripod, or even a new camera body, like the α900, at around £2,000 for the body alone - no lens!
Now comes the complete antidote:
You really, really, really don't need all that fancy kit the 'pros' and the shops tell you (sounds like the audio-extremophile stuff I was writing about a few years ago). Yes, you need great conditions, and in a studio, that means loads of light, but it seems that the old adage: "cameras don't take photos, people do" is as accurate as ever, if not more so.