As in any innovative idea, there is always a niche community with similar likes promoting it. Bitcoin with its extremely diverse audience definitely need a location where one could chat about anything and everything under the Sun about Bitcoin. Exchanging ideas, announcing new technology or patches, buying and selling of Bitcoins or goods and services through Bitcoins or even general chat. Bitcointalk is definitely a good place to start with.
There is a lot of things to talk about Bitcoins, there are also a lot of interesting development on other similar type of coins as Bitcoins. Do join and participate in this interesting and fairly active community.