pbwiki – A great service offers you to create your wiki online. It’s a free service. You just have to register for it. Your wiki is private protected by username and password. It’s a like jot and very easy to edit. A great tool to keep your information stored online.
Backpack – It is also a great service which allows you to store information online. Organise to do lists, notes, images, photos, and more. A cool organisational tool.
I recommend both of above tools to improve productivity and efficiency.