Today's search engine marketing news and opinion: Search Ad Quality Score 101; What Makes a Successful Online Promotion?; 5 Web Resources to Find a Job in Search; and more.

Today's search engine marketing news and opinion: Use Caution When Growing Your Site; 50 Most Memorable Moments in Search for 2008; Online Holiday Shopping Down 3% Overall for 2008; and more.

Today's search engine marketing news and opinion: Will Social Networks Become the New Inbox?; SEO Site Structure 101; The Good, The Bad, The Ugly: Google 2008 Review; and more.

Today's search engine marketing news and opinion: Assembling Your Landing Page Optimization Dream Team; Online Spending Soars Before Christmas; Keep Tabs on Santa's Whereabouts; and more.

Today's search engine marketing news and opinion: Social Media and SEO -- Friends with Benefits?; The Small Business Guide to Choosing Keyword Phrases; Hubspot Releases State of the Twittersphere Report; and more.

Today's search engine marketing news and opinion: Revisiting 2008 Search Predictions; SEO Site Structure 101; Holiday E-Commerce Sales Flat Overall; and more.

Today's search engine marketing news and opinion: Local Search: Where's the Love?; SES Chicago 2008 Recap; YouTube Rolls Out HD, Niche Landing Pages; and more.

Today's search engine marketing news and opinion: PPC Landing Pages: PPC Visitors Have ADD; Link Building Strategies in Troubled Economic Times; Google Website Optimizer Launches New Help Forum; and more.

Today's search engine marketing news and opinion: Buying Links is Hard Work; What Will 2009 Bring Us?; Online Video Wins the 9-5 Hour, Weekdays; and more.

Today's search engine marketing news and opinion: Social Shopping: Build Long-Term Traffic and Trust; Google Product Search + Mobile = The Future?; Yahoo! Unveils Social Inbox; and more.