Social networks at their best as people turn to them after massive quake, tsunami
Also posts tsunami warning on main search page after massive earthquake
Dell regains second place in global PC market after Acer gets thrashing from tablets
Facebook's wealthy friends include Zuckerberg, Moskovitz, Saverin, Parker, Thiel and Milner
Social network tries new angle to compete with Google, dominate the Net
Space shuttle <i>Discovery</i> touches down this morning after completing its final space flight
Using computers before bed, texting in the night keep users awake and tired
With wake-up message from Capt. Kirk, space shuttle undocks for last time
Gartner lowers PC sales forecast for 2011 and 2012, blames tablets
Gmail users with the most e-mail messages are still waiting for service to return after bug caused outage Sunday
