Wireless Internet access
Consider purchasing a wireless PC card that has both an internal antenna and a connector for an external antenna. When you are at anchor or docked, an external antenna will allow you to connect where a laptop below would not. There are numerous on-line stores that sell antennas and the cards that work with them. I recently ordered something from www.sharperconcepts.net but there are many others.
FYI, most of the cards you''ll find at Best Buy or the like will not allow connection of an external antenna.