Microsoft's BCentral is a powerful resource that can help you submit your site to search engines, advertise it with banner ads on other sites, and more. But the site is busy, making it tough to figure out what you can accomplish. MyComputer.com's streamlined interface, by contrast, makes beefing up your Web site a snap. It includes the same tools as BCentral, plus features such as polls, message boards, and chat rooms. Many features are free; others are fee-based. Either way, it's a near-painless way to improve your growing Web site.