There are obvious benefits to joining 750words.com and using the site to get some writing done. First you have a place to work that has no distractions, bells, whistles, etc. -- it's basically just a blank, private page where you can work. The only goal is to write 750 words in one day, and earning your points for accomplishing that goal can be an excellent motivator. You can also leave and come back to it without having to start up a program or open files; you can log off or minimize the window, do some other online work and then go back to it. The site is an excellent way to get into a daily writing routine, whether you make goal or not.
Here's another screenshot that shows the counter at the bottom of the page:
You can print whatever you write on 750words.com, and since it's saved online you can either leave it on your account or copy it to a file on your hard drive (I did this by highlighting, copying the text and pasting it in Word.) Writers who collaborate can easily share an account and use it to pass their day's writing back and forth; all you have to do is coordinate when either of you will log on. This is also a nice site to use for online writing challenges like word wars or group daily goal drives with other writer pals.
At present registering for an account is free (donations are much appreciated), but that will be changing shortly:
On May 1st, all existing users of the site will be given lifetime free accounts (we hope you'll continue to donate when you can). New accounts created after May 1st, 2013 will be required to become members within 30 days after signing up in order to keep writing. Everyone will always have access to previous writings, stats, etc, even if they choose not to become members.
The site owners do note that after May 1st they will be giving out free accounts monthly, and are always willing to hear from someone who might not be able to afford the new usage fee and possibly give them a free account on a case by case basis. In the meantime, you still have a week to snag a free account, so if you're interested do check it out soon.