When you add an event, the first thing you'll see (above where you put in the date) is a drop-down menu to select a category for it. I've added custom categories for our board, like Powwow or Arts & Crafts Fair. You can also create Holidays, Birthdays, Chat Times, etc. All these groups are searchable, and you can pull up a list of a group by using the menus on the left on the main Calendar page.
Also, like the threads on the board, you can add tags to an event. There's a spot to write some in below where you enter the info for the event. Try to pick obvious tags that someone might search for, like "powwow" or the relevant state name or tribe. When you go to the main Calendar page, in the sidebar on the left you'll see the cloud of tags that have been added so far. Clicking on any one will bring up a list of all events having that tag.
And now that we can use pictures on the board, it's easy to post posters and such in the event info area, just click the image button, to choose a picture from your albums or enter a URL for an image.






