If you are studying at university or doing research, then Zotero is a brilliant tool that will help you organise the pages you visit and read and will build bibliographies and references, etc, in various formats and that can be incorporated in Word or programs like Endnote. It is a free download for Firefox and incorporates itself nicely in the browser. For those using internet cafes, you can get Portable Firefox and store your browser on a memory stick, so you can take your add-ons to the cafe with you (do scan for viruses, though). If not, you can export your files and save those on a memory stick of email them.
Zotero:
http://www.zotero.org/Portable Firefox:
http://portableapps.com/apps/internet/firefox_portable 
