My calendar

AP – U.S. Internet advertising revenue dipped slightly in the second quarter from the previous three-month period, which likely is a ripple effect from the bad economy given that prior to 2008 the market had seen several consecutive quarters of increases.

AP – Here’s the scenario: It’s Friday night, and what began as an innocent happy-hour margarita morphed into a few pitchers. After all, those tacos were salty.

AP – Talk about your captive audience.

CNET – The European Union is considering a requirement that all cell phone batteries be easily replaceable, which might cause a problem for Apple’s iPhone.

AFP – Taiwan’s Asustek Computer on Tuesday added a new member to its low-price “Eee PC” mini laptop family after achieving what the company said is a great success in the market.

AP – Conservationists working with Google Inc. have unveiled a tool that lets people view protected marine areas with the click of a mouse — a bid to harness the Internet’s top search engine to raise awareness of endangered ocean habitats.

CNET – GENEVA—The CERN Computer Center is the number-crunching hub that powers the physics research lab’s quest to discover the nature of the universe.

NewsFactor – T-Mobile may have at least a short-term shortage of its G1 Android-powered phone as customers flood the company with preorders. T-Mobile said it has already sold its presale inventory of the first Google Android phone.

PC Magazine – Mozilla Labs on Tuesday unveiled a Firefox add-in called Geode, which will give the browser location awareness.

Reuters – News Corp has taken full ownership of mobile content provider Jamba by buying VeriSign Inc’s 49 percent stake for about $200 million, the two companies said on Tuesday.