Guides are help or information about anything roleplay related. You can find ones for graphics, cultures, using the Initiative features and so forth. You are also free to share your wisdom by submitting your own guides.

As long as it is your own work of course you can! All you need to do is go to the guides page find the section you would like to submit a guide for and click 'Add new guide' button. Once submitted he staff will approve it as long as it complies with the Initiative rules.