How do I add tags?
At the bottom of each content submission form (where tags are available) you'll see a field to enter a tag. You can enter a tag there. Click on the icon next to the tag field to open another field and enter another tag. You can enter 20 tags per item.
Tags must be alpha numerical characters only. Tags can be a single word or short phrase. Do not use special characters - there's no need to put "quotes" around a phrase. Single words are more effective in establishing themes as they are more likely to be repeated, but unique phrases make it possible for you to tag content in a way that, when clicking on that tag, only your content will be shown (by using your name as part of the phrase for example).