Of particular relevance to LaTeX, ResPlats provide regular classes on how to use LaTeX starting from a beginner level working upwards. Read about their LaTeX work on the Research Bazaar website. ResPlats classes can be found on this website as well as a form for extra queries.
If you have a particular question or problem that you've been working on and can't make it to the classes, ResPlats also run a HackyHour. More information on this can be found on the Research Bazaar website or by clicking the links below.