Rabbit raises $3.3M to turn video chat into truly social communication

The San Francisco company wants to reinvent chat by creating a better user interface for grouping people together.

“Facebook for scientists” ResearchGate raises a fresh round of funding

ResearchGate, a social network for scientists to share knowledge and research, announced Wednesday it has raised its second round of funding, led by Founders Fund partner and PayPal co-founder Luke Nosek.

“ResearchGate is a full-blown network for scientists and researchers …

How charity:water became tech’s favorite non-profit

“I had a model girlfriend and a BMW. I wore a Rolex. But I was really miserable,” says Scott Harrison, founder of charity:water, on the period leading up to its genesis.

charity:water has already brought clean drinking water to 2 …

Slice brings its ecommerce tracking smarts to Gmail

Shopping-tool startup Slice is available for for Gmail users today, the company announced, which opens up the ecommerce tracking tool to an additional 200 million users worldwide.

Previously available for Yahoo Mail users, Slice helps shoppers track their purchases from …