Crocodoc, an angel-backed startup that offers document-viewing software to enterprises, announced Thursday that it has been purchased for an undisclosed amount by Box Inc., a venture-backed cloud storage company. An alumnus of incubator Y Combinator, Crocodoc has raised about $1 million in angel funding, according to Reuters.

Four years ago, Maria Alegre landed her first job in Silicon Valley, as the first person in the business department of iPhone gaming startup Tapulous. Today, the 27-year-old is the cofounder and CEO of 14-month-old Chartboost, a company she believes will fundamentally change the way that game developers operate.

Some investors aggressively court media attention, while others avoid it like a bacterial infection. As for low-flying XG Ventures in Palo Alto, its founders say they’ve got nothing against some press; they’ve just been a bit busy.

It’s not unusual to see early executives of a big tech company join the VC ranks. For example, It seems like everyone on the staff of Bellevue, Wash.-based Ignition Partners has ties to Microsoft.

But it’s hard not to notice that many early Googlers are not just investing in startups as individuals, but are forming early stage firms. My colleague Constance Loizos reported yesterday how Merus Capital (whose founders have roots that go back to Microsoft and Google) are in the midst of trying to raise $125 million for its debut fund. And one half of the management team at Javelin Ventures is a former Google executive.

I came across another firm that owes its wealth, and hopeful success, to Google. The firm, called XG Ventures derives its name from the fact that its four partners are ex-Googlers.