Fresh off its $30 million venture capital round, Seattle-based Lockerz has purchased AddToAny for an undisclosed amount. AddToAny, whose free widget is used by online publishers, describes itself as the “world’s best sharing platform.” It has been installed on more than 1.6 million WordPress sites to date.

“With over 60% of all sharing activity not coming from the largest sharing destinations (Facebook, Twitter, email), an all-inclusive sharing platform is a requirement for most websites,” AddToAny writes in a FAQ on its Web site.

AddToAny now reaches more than 500 million unique users each month and the service will remain unchanged under Lockerz, the company said in a press release. However, Lockerz does plan to invite AddToAny users to become members and start earning points — dubbed PTZ — for sharing content.

Kathy Savitt

Lockerz targets what it calls Generation Z, young teens and twenty somethings who have grown up with social networking technologies. It rewards its members for what they do online, from watching videos to shopping to sharing content with friends.

“Generation Z is a generation who loves to share,” said Kathy Savitt, founder and CEO of Lockerz.  “Acquiring one of the Web’s first and most popular universal sharing tool brings our members new ways to curate the content they care about, while moving us closer to our vision of becoming the homepage for this generation.”

Lockerz, with 60 employees and more than 45 million monthly visitors, raised $30 million from Kleiner Perkins Caufield & Byers, former Microsoft CFO Greg Maffei and others in April.

It has used its cash to gobble up other technologies. Earlier this year, it bought the Twitter-based photo service Plixi.

UPDATE: AddToAny was led by Pat Diven II, who served as the company’s sole employee. He will be joining Lockerz in the company’s San Francisco office. Diven II started the company at age 21. He is now 26.

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