“She’s got to feed the monkey, I mean, hasn’t that ever occurred to you man?”

That might be a quote from cult classic The Big Lebowski, or it might be what Chartbeat recently told their current investors. Who’s to say?

While we don’t know the play-by-play of the conversations, we do know that hot-as-molten-gold analytics startup Chartbeat has taken an additional $1 million from existing investors only. This type of deal is called an inside round, and Chartbeat needed the extra cash to keep the lights on and sustain its growth between its $3 million seed round last year and the much larger round it plans to raise in 2012.

“We didn’t want to slow down, but we also didn’t want to take money from the wrong people,” Chartbeat CEO Tony Haile told Betabeat.

“So we got an inside note to keep things pumping while we go out and find backers for a much bigger round later this year.”

Chartbeat was incubated and accelerated at Betaworks, the same organization that got Bit.ly on its feet. Chartbeat provides real-time analytics to all kinds of websites and online publishers (disclosure: VentureBeat staffers are Chartbeat addicts; we use the service all the time to brag about how well our posts are doing).

Chartbeat’s visually friendly dashboard shows visitors, load times and referring sites on a minute-by-minute basis. The service also provides alerts for site crashes or unreasonable slowness.

Chartbeat’s investors include a long list of top-shelf names in the early-stage and angel funding universe, including Index Ventures, O’Reilly AlphaTech Ventures, Ron Conway’s SV Angel, Chris Sacca’s Lowercase Capital, Founder Collective, Lerer Ventures, Josh Felser’s Freestyle Capital, SoftTech VC, Jason Calacanis and a few others.