I've sent out some R resources before, but I thought I would repost a couple good ones here. The first is the Quick-R Home Page. This can get you answers to some tough problems fast (e.g., picking among some of the advanced graphical parameters--what does pch=19 look like, anyway?). Another resource that can lead you through the basics, in addition to the excellent R introduction at CRAN, can be found with the SimpleR package.
Here are a couple of more resources that you might find useful. Emmanuel Paradis' book R for Beginners is a nice introduction with code, and Dave Roberts' R for Ecologists pdf is a good resource as well. His R Labs for Vegetation Ecologists are also great. And, if you're interested in continuing on with quantitative analysis in ecology, Ben Bolker's Ecological Models and Data in R is great, and for the hardened core of modelers, Jim Clark's Models for Ecological Data is the go-to book.
