Daily Links 2/29/2012: Enterprise collaboration network Yammer raises $85 million

PANL (Universal Display) Slips: Q4 Beats, Year Revenue View Weak (Barron's: Tech Trader Daily)

Comcast to offer smart thermostat service via EcoFactor (Gigaom)

Senate Hearing on Verizon Purchase of Cable Spectrum Set
Antitrust Subcommittee to Hold Hearing on March 21
(Multichannel News)

Q&A: Comcast's Cathy Avgiris (Light Reading Cable)

Netflix CEO to Comcast: Quit the poor-mouthing (CNET News)

SAP Sees Mobile Products Boosting Sales (Bloomberg)

Yammer Connects With $85 Million Funding Round (Wall Street Journal: Digits)

Ellison's Oracle cloud lives as hype winds down (The Register)

Brett Berson - Turning a Portfolio into a Community... (Redeye VC)

There are two ways to increase ROI (Nat Turner's Blog)

New Scala Software Helps Organizations Create Bold Digital Signage That Commands Attention (PR Web)
Scala is based in Exton.

Quantum Leap Innovations Offers Free Subscription to Twitter Analysis Tool “Quantum Leap Buzz”
Free Consumer Edition Provides Never Before Available Twitterverse Analytics; Business Edition Available for Purchase in April
(Business Wire)

Del. card firms get closer to offering “mobile wallets” (Delaware Online: Delaware Inc.)

U.S. Federal Reserve Beige Book: Philadelphia District (Bloomberg)