General WordPress Information
WordPress.org – Download the latest version of WordPress.
WordPress Codex – Tips & tutorials to get you started using WordPress.
WordPress Plugin Directory – Browse and download plugins that add features to your WordPress site.
Free WordPress Themes – Browse and download free WordPress themes.
Premium WordPress Themes
Theme Forest – One of the largest selection of quality themes on the web! *New*
Elegant Themes – Great premium themes at a low, low price!
StudioPress – Attractive and easy-to-use premium WordPress themes.
Solostream – Great looking magazine-style WordPress themes at great prices.
Woo Themes – Offers attractive and professional WordPress themes in a variety of styles.
Social Media & Networking
Facebook – A social utility that connects people with friends, family, co-workers, and customers.
Twitter – A social networking site that enables its users to send and read short messages called tweets.
Video Marketing
MetaCafe – Upload and share your videos to this popular site.
MySpace Video – Share your videos on MySpace.
Tube Mogul – Upload a video and send it to popular video sites all at once!
Vimeo – Upload and share your videos to this popular site.
YouTube – A great (and free) place to store and share your videos.