A blog differs from a traditional web site in several ways. Most importantly, it is updated much more regularly. Many blogs are updated every day, and some are updated several times a day. Also, most blogs use special software or web sites which are specifically aimed at bloggers, so you do not need to be a computer expert to create your own blog. This means that ordinary people who may find computer difficult to use can easily set up and start writing their own blog. In 2003, the Internet company AOL introduced their own blogging service, enabling its 35 million members to quickly and easily start blogging.