This is a site that I visited a few time about 7 years ago. I was surprised to see that it not only exists, but has gotten much better.

In addition, it seems as if they are attempting to start a community of learners, but it doesn’t seem to be getting off the ground.

There are resources here that provide information on steps in the writing process from thinking of topics to revising and editing your writing. There are also pages dedicated to specific types of writing and a little (though sparse) on documenting your sources.