Since it is possible for a low-traffic website to be Slashdotted, and Farked (that is, sent a large amount of traffic from a highly visited site), I think the term "freaked" or "Freak(onomics)ed out" may be apt here:
Graph generated and borrowed from statcounter.com.
The unique visitors are still climbing! The spike in traffic resulted from the Freakonomic’s winner list for the Prisoner’s Dilemma contest including a gracious link to a previous discussion of their contest found here. Our former visitor numbers were not overly flattering, but we were content with our current reader base given that a) we attempt focus on specialized political science fields and b) are currently only in our second month of web existence. However, an influx of even temporary readers is more than welcomed.
Thanks to Stephen J. Dubner for linking to us.