Model-Based Clustering and Classification for Longitudinal Data (longclust)
Clustering or classification of longitudinal data based on a mixture of multivariate t or Gaussian distributions with a Cholesky-decomposed covariance structure.

Easily Harvest (Scrape) Web Pages (rvest)
Wrappers around the XML and httr packages to make it easy to download, then manipulate, both html and xml.

Adding Progress Bar to ‘*apply’ Functions (pbapply)
A lightweight package that adds progress bar to vectorized R functions (‘*apply’). The implementation can easily be added to functions, where showing the progress is useful for the user (e.g. bootstrap).