Once you have an account, the sidebar of your Profile page has all the links to get you creating resources, blog entries, videos, how-to articles, and community forum posts.

(A) Create resources with the top set of links.
(B) Create blog entries, videos, forum discussions, and how-to articles with the bottom set of links.

Create some content

Just fill out the fields for each type of content, and you'll be on your way. To make it easier for other people to find your content, put in some tags that describe it.

(A) All submissions get approval by a moderator before going live, and required fields have red stars.
(B) Click on popular tags to add them to an entry.
(C) Additional tags may be used or created using the text box.  If existing tags match the letters that are typed, suggestions will appear.

Bonus!

the more things you publish, the more points you get. And soon, you'll be able to use those points to get cool stuff! Check out how many points you have on your Profile page.