“Springer is pleased to announce the pub­li­ca­tion of the 500th vol­ume in the best-selling series, Meth­ods in Mol­e­c­u­lar Biol­ogy. To com­mem­o­rate this mile­stone, we have made some pro­to­cols from this 500th vol­ume — Sys­tems Biol­ogy, edited by Ivan Maly — avail­able for free online at SpringerProtocols.com. As this new vol­ume demon­strates, Springer con­tin­ues to pub­lish pro­to­cols at the cutting-edge of research.”
From an email ad from the pub­lisher, 4/23/09.

PUL has an ongo­ing sub­scrip­tion to this Springer series.  We’ve not yet received vol­ume 500 — but we have received #528. (They often come out of sequence.)  You may want to fol­low their link.  They have ways to store your own pro­to­cols, and videos of some, and links to the newest with RSS feeds…similar to Wiley’s offerings.