The official website of the Prefecture of Lefkada is full of great information on all aspects of the island. Included on the site is a comprehensive programme of summer events in Lefkas Town and many of the island's villages. A good browse through the whole site will reveal lots of useful stuff.
The link below is for the English language version. Many other languages are supported on the site
http://www.lefkada.gr/default.asp?langid=2
