simglm: 
This package attempts to create a general syntax structure to simulate regression models, both single and multilevel models. The package also facilitates the power by simulation paradigm, including the ability to cross factors similar to a Monte Carlo simulation design.
SPSStoR: 
This package converts SPSS syntax to R syntax. See the GitHub repository for updated SPSS routines that the package supports.
highlightHTML 
This package post-processes an HTML file to add text/cell formatting to portions of the HTML using CSS.
pdfsearch 
Adds the ability to search for keywords from pdf files rendered to text by the pdftools R package.