Online Ad Market:

• When will brand dollars move online? Maybe never.

Mobile Computing:

• Nokia unveils Windows smartphones to catch rivals.

• Windows Phone 'Mango' vs. Android.

• Tablet computers attract the affluent and well educated.

• More RIM troubles push PlayBook OS 2.0 to February.

Publishing:

• Newsstand app brings Condé Nast 268% boom in subscription sales on iPad.

Convergence:

• Twitter and TV get close to help each other grow.

Productivity:

• Chrome 15 released with… improved start page.

• HP testing Windows 8 on TouchPads.