The Jonathan Edwards Center at Yale have launched a new website including no less than seventy three volumes Jonathan Edwards’ work. As well as the large volume of books and sermons there is a very thorough and well split out biography and a frequently asked questions section that will fill you in on any Jonathan Edwards background you need to know!
For a full list of the titles available browse the Yale website. Amongst other classics it includes:
Volume 1: Freedom of the Will
Volume 2: Religious Affections
Volume 3: Original Sin
Volume 4: The Great Awakening
There are also links to some external websites that may be of interest. If you are an antiquarian you may want to check out Beinecke Rare Book & Manuscript Library which has scanned images of some original Jonathan Edward books (both printed and written).