I would have to agree that cultivating a niche user community from the beginning is a key to future advertising success. As we all know young males are the advertiser’s dream. But what many people forget about is the highly educated $125K+ income crowd. Advertisers kill for people with this type of disposable income and high end tastes.

It’s good to do your homework from the start. Spend some time researching what niche advertising segments money is flowing into. You can find a great breakdown of online ad spend by industry on ClickZ. From there you would probably want to figure out a niche to target.