For the group website--
There's plenty of website makers out there you could use. Webs (http://www.webs.com/) is a good site to use, but I personally recommend Proboards (https://www.proboards.com/) for forums since its also easy to use and has a lot of options. There's also Weebly (http://www.weebly.com/), but I haven't tried it myself. All the sites I mentioned are free to use, though they do have some paid options as well.
Using both websites is pretty simple to use. I'd just recommend having an organized theme/colors and layout, kinda like how this forum is organized (with the help sections under one 'header' sort of things, the discussion sections, etc.)
I wish you luck with your group! ^^