Online Ad Market:

• Two Bing marketers fired for 'mismanaging company assets,' violating procurement policy.

Mobile Computing:

• Free mobile apps 'drain battery faster'.

Global:

• Spending on UK mobile advertising jumps in 2011.

Business Strategies:

• Facing fees, some sites are bypassing Google Maps.

Productivity:

• Microsoft targeting October 2012 for Windows 8 launch.

• Mozilla: Firefox needs H.264 support to survive shift to mobile.

Security:

• Crowdsourcing and Kaspersky crack Duqu language.

Gaming:

• Zynga is in talks to buy "Draw Something" maker OMGPOP.

• $3.1B tablet gaming segment tipped by 2014 as console gap closes.

Pearls of Wisdom:

• 3 common PPC ad copy flops.

• Google points out 5 common SEO mistakes.