The big news today is that Facebook is reportedly planning to register to go public next week. It should come as no surprise, then, that our most popular post this week was about this year’s prime IPO candidates. Other hot topics included the above-average performance of the San Francisco Employees’ Retirement System’s PE portfolio, a surge in VC investing and promotions at Carlyle and TA Associates. Here are the top 10 posts peHUB’s regular readers found most compelling from Jan. 23 to Jan. 27

1. Slideshow: Bring on the 2012 IPO Candidates – by Joanna Glasner
2. Scorecard: San Francisco Builds A Winning PE Portfolio – by David Toll
3. Venture Investing Rebounds In 2011 With Early Stage Leaping To A 10 Year High: Slideshow – by Mark Boslet
4. Aydin Senkut Recalls a Game of Pool with Aaron Levie Led Him to Milo.com: PHOTOS – by Alastair Goldfisher
5. Slideshow: Smart Grid, Smart Play? – by Jonathan Marino
6. TA Associates Promotes Eight – by peHUB staff
7. Carlyle Promotes 41 Execs – by peHUB staff
8. Global PE M&A Does Well in 2011 – by Angela Sormani
9. TransDigm Group Acquires AmSafe Global – by peHUB staff
10. Battery, Bay and USVP Could See 22x Return from Guidewire IPO – by Lawrence Aragon

Remember the Internet’s last mile dilemma? The smart grid may have its own a last mile difficulties. High costs and immature technologies could leave consumers short of power and utilities with few options to deliver it. Both dilemmas will restrict the nation’s ability to manage power in an age of climate change. It’s enough to [...]

The energy industry is wrestling with the challenge of motivating indifferent homeowners to become interested in home energy management–so far unsuccessfully. The killer app has not been found. Sure, companies such as VC-backed OPower have demonstrated some success engaging consumers and reducing power use. But what will turn niche market into mass market? Accel Partners’ [...]