What keyboard shortcuts move, resize, and maximize windows under Mac OS X?

"Spectacle hasn't been mentioned yet. ""Move and resize your windows with ease."" -- http://spectacleapp.com
It's open source: github.com/eczarny/spectacle
Update March 17, 2020
Spectacle author does not maintain the project anymore.
Macos provided an option to move windows left/right. See the answer from @afonsoduarte"

"Not built in, but you can install 3rd party software.

http://www.macupdate.com/info.php/id/26411/mercurymover

http://www.macupdate.com/info.php/id/30591/right-zoom"

"The best answer is to create a keyboard shortcut in System Preferences > Keyboard > Shortcuts > App Shortcuts.
Then add Chrome or whichever and in the name exact as it appears enter: Zoom.
This is the critical part...
The shortcut has to include the Shift key. When you want to fully maximize the window using the keyboard and mouse you can do so by holding down the Shift key and clicking the Green Maximize/+ button in the browser toolbar.
I assigned my shortcut to be Command+Shift+Return and it works like a charm.
System Preferences > Keyboard > Shortcuts > App Shortcuts"

"Following along with the idea of windowflow - check out it's parent project Optimal Layout. I tried sizeup for a while and was actually trying to find a replacement for it when I found Optimal Layout.

It is by far the best OSX keyboard based window manipulation app I've seen yet! Rocks...

http://most-advantageous.com/optimal-layout/"

"I've tried the other third party apps here and have found Moom to be the best:

http://manytricks.com/moom/"