San Francisco-based startup ClassDojo has launched out of beta an announced it has raised $1.6 million in seed funding. The company, which says it already has 3.5 million teacher and student members on its site, helps teachers manage student behavior using game mechanics. Investors include Paul Graham of Y Combinator, Ron Conway of SV Angel, [...]

Most of the people (41%) who took our latest poll say they’re “a little worried,” about the second half of the year, 40% say they’re “very worried” and nearly 7% describe themselves as “freaking out.”

With the recent rash of bad news, as well as ongoing problems like the European debt crisis, we’re wondering how you feel about the business climate for the second half of the year. Please let us know by taking our quick poll.

Paul Graham is warning Y Combinator companies that they should conserve cash because it will be difficult to raise venture capital in the wake of Facebook’s problematic IPO, according to an email posted on Y Combinator’s Hacker News site.