Mobile Computing:

• Microsoft CEO says launch of new phone software will be by the end of the year.

• The magic behind rating apps.

• Lead designer of WebOS flees to Google.

Search:

• Clickable lets small businesses go beyond Google's search ads.

• Yahoo's Bartz promises movement on ad products and revenue.

• Yahoo's engagement falls off of a cliff.

Social Media:

• Reach customers is 140 characters, all of them free.

• Can Twitter promote itself into profitability?

• LinkedIn Tweets app lets users find contacts on Twitter.

PR & Business Communications:

• Thank you, SonicMule, for having fun with a press release.

Publishing:

• Journalists won't report the news unless it can drive page views.

Legal/Regulatory:

• New proposal would require identification for prepaid cellphones.