You can find the text on Perseus in a translation by Benjamin Jowett (who also provides a helpful Note on the geography of Thucydides), here:
There is also a translation by Thomas Hobbes:
A translation by Richard Crawley is available on archive.org, to read online or download in various file formats:
Participants can start and continue the conversation in the forum, here, and we will meet via Google+ Hangout on Tuesday November 29 at 11 a.m. EST.
Hélène, Janet, and Sarah