Social Media:

• Facebook's new features remain unpopular.

• Twitter is at 250 million Tweets per day, iOS 5 integration made signups increase 3x.

Search:

• An interview about search algorithms with Google director of Research Peter Norvig.

Mobile Commerce:

• More Google Wallet merchants are live.

Mobile Computing:

• New Apple iPhone snared big sales on first weekend.

• iPhone 4S supplies tighten.

• T-Mobile announces new “unlimited” 4G data plans.

Business Strategies:

• Hulu puts owners in new quandary.

• Microsoft's plan for bringing its BI tools to iOS, Android, and Windows 8 devices.

Finance:

• Clickable lands $12M in funding led by AmEx.

• Livefyre lands $4.5M to take on Facebook comments.