Photo app Picplz expands its social reach

The past few months have seen the launch of two hot San Francisco startups with mobile photo-sharing apps — Instagram and Picplz. Today, Picplz announced that it’s catching up with the competition on the social networking front, by adding support for photo-sharing site Flickr as well as blogging services Tumblr and Posterous.

Amid photo-sharing hype, Shutterfly makes IPO move?

Shutterfly, the online photo site based in Silicon Valley (Redwood City) is pursuing a sale or possible initial public offering, the Wall Street Journal reports, citing sources — in a deal targeted at $400 million to $500 million.