The new hot social thing on the web these days is a Palo Alto, Calif.–based company started by Ben Silbermann, Paul Sciarra and Evan Sharp. (I incorrectly described this group as ex-Facebookers. My apologies for the error.) It is called Pinterest and it is about the concept of curation — a much abused phrase in Silicon Valley. Essentially it allows you to create visual collections of things that you like and find on the web. It is especially popular with young women. Some smart folks such as serial entrepreneur Elad Gill have started talking about “social content curation” and point to the evolution of online content. They even have a graph to show it all. Gill writes on his blog: