Though most largest search engines do not 'spider' the keyword Meta Tags on your page, and in some cases ignore these completely, the use of Meta Tags on your page still serves an important purpose. There are literally hundreds, even thousands of smaller search engines scattered all across the Internet. Whilst the bigger engines tend to 'spider' whole pages instead and obtain their results from that, these smaller search engines don't have as much physical space to work with and must do things differently. It is in these particular engines you will find that Meta Tags are still very important.