Just read through the postings and before you ask a question, do a search using the
search the forums link.
If you don't find what you're looking for, then start a thread.
There are a bunch of people here who will thrash you for not doing the search first. Chances are, someone already asked your question and it's been answered. Sometimes helpful, sometimes not.
Have fun! Go to Fixed Gear Gallery for bike porn. Check out the sponsor links there for gear and stuff.
If you are looking to buy a fixed gear bike, check out the Mercier Kilo TT on bikesdirect.com It's the sweetest deal on a budget fixie. Very nice bike for $349 complete.
Hope that helps.
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Because, yeah... uh huh! Umm, yeah!