lme4

lme4 development has moved to Github; please go there for up-to-date development versions and information.

Resources that remain on R-forge

References to articles and other research using nlme or lme4, or the corresponding BibTeX file. (If you would like to add your work to this database, please email vasishth.shravan at gmail dot com.)
Slides from short courses on lme4
Chapter drafts of the book lme4: Mixed-effects Modeling with R

Repository containing (relatively) up-to-date binary and source packages of recent versions of the development version (for most up-to-date code, which must be installed from source, see Github).