Here's What These 8 Hot Tech Companies Are Worth [CHART]

With a recent round of fundraising valuing photo sharing giant Pinterest at $2.5 billion, Benzinga decided to take a look at the most recent valuations we could find for the digital pinboard's rivals. Check out our graph below:

A couple things to note from the chart are Facebook's

obvious absence. With a valuation of

on the eve of their IPO, the social media giant and owner of Instagram is a glaring outlier that was better left off the chart, even if its value has gone south with its stock. Tumblr's last "official" valuation in 2011 placed the company's market value at $800 million but

to raise another round of capital in late 2012 places the valuation at $1 billion. Regardless of whether the rumor is true or not, it's likely that Tumblr -- recently cracking the top ten most visited sites in the US -- has only seen its valuation go up. It's represented in the chart at $1 billion. Chicago-based Groupon's

is a stark drop from its $12.7 billion IPO valuation. And Twitter's

is a recent BlackRock

valuation on track with average market values culled from several sources who have recently bought stock in the company at figures varying between $8 billion and $10 billion. Yelp's

is slightly dated, coming from July 2012.