Bookmarklets are for people running Internet Explorer 5 or later on a PC or a Mac (exceptions annotated).
Highlight
keyword blue
Click this and you will be prompted to enter a keyword, type the word
in and click OK and it will tell you how many times the word occurs on
the page and highlight them all with a blue background, making it very
easy to skim documents for the bit of information you want
Highlight
keyword red
As above but with red highlight
Highlight
keyword yellow
As above but with yellow highlight
Highlight
links
Highlights all the links on a page
Kill
Style Sheets (IE5.5+ only)
Does exactly what it says
Link
Sidebar
Opens a reformatted version of any page it is used on. The new page will
show all the links from the previous page in a left-hand column, clicking
the links opens the relevant page in the right-hand frme, saves hitting
the back button a lot