A nice site published by Matteo, a citizen of Monteriggioni. The site is clear, and rich of any kind of info you may need to visit this magic city of Tuscany. http://www.monteriggionicastle.com
The official site of the Siena tourist office, contains events, museums and many useful information mainly about the city of Siena. The graphic is very rich and pleasant, there is an extensive use of Macromedia Flash. http://www.siena.turismo.toscana.it
The official site of the Siena City hall. Lively, rich with information and useful news about the city and its province. The section about the tourist info is very useful. Very interesting the Palio section. http://www.comune.siena.it