Marissa Mayer, Google's data-driven planner extraordinaire, has gone to work on her personal life: Friends of the VP are showing off the fancy wedding invites she just sent out — and talking about the three-day nuptials she's planning.

Mayer's union with real estate investment manager Zach Bogue will take place as part of a wedding stretching from Dec. 11 - 13 at the San Francisco Four Seasons, we're told. Mayer and Bogue bring out the competitive overachievers in one another, and the event sounds like an extension of their mutual mania. Even the invitation came wrapped in a heavy red velvet box, said a tipster.

The lengthy wedding should only further Mayer's reputation for aggressive well-roundedness: She was on both the debate team and pom-pom squad in high school, and today her master's degree in computer science makes a geeky contrast to the Oscar de la Renta clothes and fashion spreads in Vogue and Glamour. In keeping with the theme, we'd expect her fairytale weddings to have some geeky twists (laser tag, anyone?). If you have any further details — or better yet, a picture — we'd love to hear from you.

UPDATE: Added location of the Four Seasons.

UPDATE: We failed to mention that Mayer lives at the SF Four Seasons, in a penthouse, as we've reported previously. So maybe she's having the wedding at home.

(Pic by JD Lasica)