A great video on how to use del.icio.us. del.icio.us is one of my favourite social bookmarking sites. A common problem with del.icio.us and other sites that rely on tags is the lack of any kind of controlled vocabulary for tags. I don’t have a degree in library science but I have that problem just on my own account. Sites that are actually similar or related have different tags assigned to them and make the bookmarks hard to find later on. Multiply that by millions of people using different tags for the same website, along with misspellings and the number of tags and websites can in some ways become chaos. Makes me appreciate librarians a lot more.