"A census taker once tried to test me. I ate his liver with some fava beans and a nice Chianti." and it wasn't so del.icio.us...

del.icio.us is not a tool that i would use.  Although it is undoubtedly useful for people who have multiple computers and need to be able to access many different sites on separate computers, i personally feel that it would be necessary for me.  it has become a personal habit for me to send myself the link to any web page i need via email, (usually I only need to reuse addresses for research papers, in which case I have noodlebib to save them)