There are several sites available that enable you to connect with other users. Contributing to these communities is an excellent way to both help others learn the material and solidify your own understanding. There are blogs & forums as well as curated lists. Also included is a collection of any data analysis jobs that we come across.
This list of blogs is specific to R. Some are focused on the status of R, others are aimed primarily at education & explanation of R methods. Some are professionally written & maintained, others are less formal. Each has been helpful in one way or another.
Forums are an excellent place to ask questions & learn how others are using R. These forums are moderated & active, any one of them should be helpful in getting answers when you're stuck.