What are tags?
Tags are keywords, or categories if you like, that you attribute
to your posts. They allow you to organise and file your posts,
for easy retrieval.
What constitutes a tag?
Any word (or multiple words enclosed by double quotes) between
3 and 64 characters can be a tag, as long as it's not a swearword.
For example, europe, "2005 records".
How do I tag a post?
Whenever you add or edit a post online, you see an input form
element called "Tags". Just enter whatever words (separated
by a space) you think define your post or picture.