The Key Largo Coffee House
MM100.2 Oceanside (in the trees, across from Waffle House)
Great place to have coffee, breakfast, lunch, dinner, or dessert. Hang out on the veranda. Free wifi!
Porky's Bayside Bar-B-Que
M.M.47.5 Bayside Marathon
Free wireless internet for customers, great bar-b-que, cold beer, on the water, original Keys atmosphere with live music every night
In Islamorada, try the Library for free internet service. Imagine all libraries will have the same.