While I was writing Pirates & Faith, I probably spent just as many hours, if not more, researching the early 18th century as I did writing the books. I collected a huge number of links to research pages (many of which are sadly no longer available). Here are a few of my favorite, which I considered the most useful.
A very long list of occupations in Colonial America. Many I had never even heard of, so if you're looking for an interesting, out of the ordinary occupation from a colonial character, this is the place to find ideas. http://homepages.rootsweb.ancestry.com/~sam/occupation.html
I was tickled to find this site because it's one of those websites that is exactly what I needed. You can look up the calendar for any year. Here I looked up the calendar for 1726 while I was writing Finding Faith. http://www.timeanddate.com/calendar/index.html?year=1726&country=1
One of my favorite websites for colonial research. There is so much to look at. http://www.colonialwilliamsburg.org/
This is an interesting page with the cost of living during the 18th century. http://footguards.tripod.com/08HISTORY/08_costofliving.htm
A good page with a timeline of all the important events of the 1700s. http://www.history1700s.com/page1001.shtml
Photo by Mr. G's Travels on Flickr