You'll find me at Mt. Olive Elementary School this evening casting my ballot. In addition to looking around on the Web, I found the following helpful in getting prepared: sample ballot and the KNS voter guide. The candidates' websites also are a good (sometimes cautionary) read.
Also, if you haven't yet signed the petition that would allow some very important Knox County charter amendments to be put on November's ballot, learn more here and sign the petition at one of these locations.