Search Engine Land is a must read hub for news and information about search engine marketing, optimization and how search engines such as Google, Yahoo, Microsoft Live.com and Ask.com work for searchers.
Search Engine Watch is the authoritative guide to search engine marketing (SEM) and search engine optimization (SEO), offering the latest news about search engines.
Sphinn is the place for web, online, search, interactive and internet marketers to share news stories, talk within subject-specific discussion forums, build a network and stay informed of upcoming events.