here’s a good selection of online tools to help streamline your web-productivity.

web browser - firefox 3.0
word processor & document management - adobe buzzword
image editing - picnik
file sharing - drop.io
presentation - Sliderocket
survery and polls - PollDaddy
embedded video streaming - Vimeo or youtube
embedded documents - scribd
screen sharing & collaboration - adobe connectnow

any more? feel free to add them in the comments.