Are you shopping around for a race to run? Be it a 5k, a Fun Run/Walk, Half Marathon or a Marathon you can find an upcoming race in your area at Active.com.
On the right side of their main page is a the event search box. Type in the type of event you are looking for and your zip code and all of the upcoming races in your area will come up. If you want to be more specific in your search, you can do an even more advanced search by type of race or if you are just looking for 10k runs. You can even sign up for many of the races through the site. Once you have registered and paid for an event, I think the chances of blowing it off decrease significantly.
I think fitness goals are great to stay motivated, and training for a race is a wonderful way to make sure you fit those workouts into your busy day and hectic week. It is like having a deadline and those sure do motivate us at work and school, so why not have an event deadline to keep you moving.
Fit's Tip: Check out the races in your area and choose one far enough in the future that you can train. If you are curious to start running try the Couch to 5k program at Complete Running. It takes at least 8 weeks to train. So think about signing up for a race in mid June or later.