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CAMBRIDGE, Mass. — There’s a lot of activity in mobile advertising again. Jumptap, a Boston-area mobile tech company, has raised a new venture round that brings its total funding to over $120 million. The rumor around town is that the company will either go public or get acquired by someone like Amazon.com. In the past 5 years, Boston has seen a number of big mobile-ad acquisitions, such as AOL buying Third Screen Media, Apple buying Quattro Wireless and PayPal buying Where.
 
Speaking of mobile ads, we’re keeping an eye on a new crop of local startups in the sector, including Session M, Adelphic Mobile, Celtra and CraveLabs, which helps businesses create mobile ads through Facebook status updates.
 
Our two deals of the week have to do with building the data center of the future. Burlington-based DynamicOps, an IT spinout from Credit Suisse, is being acquired by virtualization giant VMware. And on the networking side, Nashua, N.H.– and Cambridge-based startup Plexxi has raised a total of almost $50 million in VC funding as it goes after big players like Cisco and HP.
 
Finally, Avid, the Burlington audio and video tech firm, is selling off its consumer product lines to companies in R.I. and Canada. Counting a round of layoffs, Avid will lose 20 percent of its staff, or about 350 employees.

The weekly roundup of business, technology and life science news from our partners at Xconomy.com airs every Friday on 89.7 Boston Public Radio.