Hotels, agriturismi, and B&Bs will have internet access on their own premises. For those walking along San Gimignano's streets, below are some addresses where you can find public Internet access.
Lo Spuntino (Via XX Settembre 4b; tel. 0577 90 72 99; open 10am-8pm Apr-Oct 2-7pm Nov-Feb) Internet at €4.50 per hour.
Internet Train (Piazzetta delle Erbe 3) In the Enoteca DiVineria.
Bar Pasticceria Boboli (Via San Giovanni 30).