Websites

Kindleboards: A forum for readers and writers on the kindle ebook reader. Authors should especially check out Writer's Cafe.

Absolute Write: Forum with lots of posts on all aspects of writing

Reddit: A social Web site with tons of stuf, but here are the subreddits that will interest you

Scribophile: Great place to find writing groups and critiques.

Critique Circle: Another great place for critiques.

Software

Scrivener: The big mac daddy of writerly organization.

Jer's Novel Writer:  Scrivener's little brother. I use this in the first draft of my writing.

Reviewers

The IndieView: A great collection of bloggers who review indie books.