When stuck in a ditch or snow you rock your car back and forth to gain momentum. The same with writing. This may need a bit of explaining. When you rock backwards you delete some of you words. This may not sound like progress but we all know that many of the words you've written are going to get deleted.

So read that last paragraph you wrote, think about what it is that you've said, then delete it. Now write it again. If you have a memory like mine you will be using a lot of different words. You may get enough momentum to keep going into the next paragraph and soon. Let me know if it works for you.

Plots:
http://blog.janicehardy.com/2011/03/what-coincidence-creating-plots-that.html

Scenes:
http://absolutewrite.com/forums/showthread.php?t=291134

More words:
http://absolutewrite.com/forums/showthread.php?t=291132

But better than these:
http://www.dailywritingtips.com/a-sample-of-amateur-writing/

You in the back:
http://blog.janicehardy.com/2014/06/what-are-your-secondary-characters-good.html

Looking for a market:
http://thegrinder.diabolicalplots.com