Writer's Groups: Writing.com
Writing.com has been in existence for ten years, and continues to grow. Unlike many other writing groups, it's free to join and use, and geared for fiction writers and poets of every genre.
You'll be able to establish a free online portfolio, if you choose. Other writers and readers can give you feedback on the pieces you post. There's a free email account, free newsletters for specific genres, and links to all kinds of contests you can enter. And there is an active message forum for connecting with other writers.
Once you join, you'll set up a "workspace", decorating it however you like. It's up to you whether you post some of your writing, or just take advantage of the forums where you can talk writing with people all over the world.
You can spend some time reading what others have posted (there's a rating system, so you can identify which pieces are more to your liking), and comments are welcome. There are even interactive stories that you can add to.
After you are a member, you'll be able to access all the writing resources available on Writing.com. Just a few of the pages available: links for editing your work, literary agent recommendations, links to resources on marketing, publishing (and self-publishing), and links to writing classes in all kinds of genres.
Most of these links can only be seen if you do the free sign up, but if you don't care for it, you can always drop your membership. Definitely check it out.