The $150 million BlackBerry Partners Fund has announced its first three investments totaling $16.7 million. They are: buzzd, a social network; Digby, a mobile storefront provider and WorldMate, a travel management tool. Last week, the investment fund also awarded $150,000 to three companies that won top honors at the BlackBerry Developer Conference. Release (PDF).

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—buzzd is a location-aware social network that raised $3.2 million in a first round which included investments from Greycroft Partners, Monitor Ventures and Qualcomm Ventures. The company is based in New York City.

—Digby, which raised $5.5 million in a second round that includes additional investment from existing shareholders, provides mobile shopping tools for retailers. Features of the Austin, TX-based platform include web and application based mobile storefronts with search, browsing, purchase, secure wallet and location-based services.

—WorldMate raised $8 million in a third round with the participation of Motorola Ventures and AMC Communications. The Israel-based company develops software that helps travelers manage their trips and has been in business since 2000.