Google Doodles have become the best success story of corporate branding in recent years: they're addictingly fun, go viral instantly, and create some positive press for a company that otherwise gets criticized for its privacy shenanigans. Which is probably why The Daily today decided to take a look at the lucky four Doodlers employed by Google to rebrand its six-letter logo again and again. Like many Googlers, Doodle artist Jennifer Hom is the obsessive type. "We’re constantly coming up with new ideas for doodles," she says. “I dream about Doodles in my sleep." (The latest Doodle she dreamt up was of the fence-painting scene in Tom Sawyer, pictured above, up today for Mark Twain's birthday.) And while the Doodles themselves are all fun and games (sometimes literally), making them isn't:

Coming up with doodles is a yearlong process. While there are weekly, formal meetings with her fellow doodlers to discuss new ideas, Hom says that just as many ideas come from casual conversation around the office or are thrown around via e-mail. Users can also submit proposals, or even finished doodles, to the company via a dedicated e-mail address: proposals@google.com.

Doodling, thus, "isn’t something that’s taken lightly" at Google. Creating a Doodle typically takes four weeks, with special consideration given to ones for the search engine's international sites. "Since Google often produces specialized doodles for its international home pages, much time is spent going back and forth with the different international offices making sure they’ve captured the spirit of the event or person they’re trying to commemorate." All that attention makes sense: the logo is the main starting point at which the public views a company. And it seems like everybody can pick their own way to view Google: currently there are some 1,000 Doodle that have been published, 300 of them for the site's U.S. version, according to Google, starting with this pixelated 1998 creation for Burning Man. Just last week we crowned this epic interactive cartoon for Polish writer Stanislaw Lem's birthday the king of all Google Doodles. So it looks like Google hasn't hit the ceiling on Doodle ideas just yet.