Please note that this page will have resources added over time. Some resources will link back to posts at this blog that might be helpful to writer, and some might link to off-site sources, like websites or blogs that I've found particularly helpful for writing.
Insecure Writer's Support Group offers a plethora of writing, publishing, and marketing help for newbie to professional writers. This site started as an idea from one blogger who wanted to help other writers. Alex J. Cavanaugh started the IWSG blog hop, and then the website, and the facebook page. I highly recommend this site, and this group, for writing help and encouragement! There are posts by writers, bloggers, agents, editors, publishers, and more!
Laurel's Leaves - Laurel Garver's blog regularly includes helpful tips and information for writers, from writing prompts to tips on character and plot development, with a few tidbits of grammar thrown in for good measure.