Newgrounds user accounts are completely free and the sign-up form
is quick and simple. Perks of membership include:
Access to post in the forums
Ability to review submissions and keep a favorites list
Ability to submit content you made
Augmented voting power
Access to secret features
More stats than you can shake a banstick at, you 1337 pwner!
When you create an account, you are provided a user page where your name is the URL prefix, for example Bob is http://bob.newgrounds.com
From the account page
you can update your general information and user images.
Accounts also include file storage
for collaborating with partners. Upon upload, each file is given a random URL and linked only to the uploader's list of stored files. The only other people who have access to them are those who are given the URL for a particular file.
Most important of all, you get lots of SHINY STATS! They are: