A new update of my sjPlot package was just released on CRAN. This release focused on improving existing functions and bug fixes again. Especially the table output functions (see my previous blog posts on table output functions here and here) improved a lot. Tables now have more and better possibilities for style customization and knitr integration. A basic introduction into the new features is given in this document.
To make it easier to understand all features, I started to setup comprehensive documentations for all sjPlot functions on strengejacke.de.
Strenge Jacke! 
Thank you!