Here's what you've missed this week:

• Pinterest Introduces Web Analytics - Pinterest Web Analytics gives site owners insights into how people are interacting with pins that originate from their websites.
• Tumblr Updates iOS App - Tumblr has updated its app for iPhone and the iPad to version 3.3, bringing several nifty updates, including a new camera app.
• Netflix Adds Facebook Integration in the U.S. - Netflix users in the U.S. this week will for the first time see video recommendations from their Facebook friends.
• Facebook Working on Incorporating the Hashtag - Facebook is working on incorporating the hashtag, one of Twitter's most iconic markers, into its service by using the symbol as a way to group conversations. It is unclear how far along Facebook's work on the hashtag is and the feature isn't likely to be introduced imminently.
• Dropbox Acquires Email App Mailbox - Dropbox has announced that it has acquired email app Mailbox after the app hit the market nearly one month ago to critical acclaim.
• Polaroid Plans To Produce The Instagram Camera By 2014 - no joke.