Got an event that you want to promote? There are places online you can post your event for free.
One place you can list events, such as seminars, for free is at http://www.craigslist.org/ From the home page, click on your city, state or region and post in the appropriate category. You can also use the classified ads on the site to buy or sell things, look for a job, promote your business and more.
If you have an event related to a book or author, post it at http://www.netread.com/ Click on EventCaster and set up a free user account to submit your events.
And don’t forget your local paper. Check their web site to see if they post event notices and to learn how to submit.