The following pages describe how to perform a variety of tasks using PLUMED 2

Calculating a minimum distance	This tutorial explains how to calculate the minimum distance between groups of atoms and serves as an introduction to MultiColvars
Moving from Plumed 1 to Plumed 2	This tutorial explains how plumed 1 input files can be translated into the new plumed 2 syntax.

In addition, the following websites contain resources that might be helpful

http://www.youtube.com/watch?v=iDvZmbWE5ps	A short video introduction to the use of multicolvars in PLUMED 2
http://www.youtube.com/watch?v=PxJP16qNCYs	A short video introduction to the syntax of the PLUMED 2 input file
http://en.wikipedia.org/wiki/Metadynamics	A wikipedia article on metadynamics