Think Green! ;)
First you need to know that search engines like Google, Yahoo and MSN Search use crawlers to spider the web they will find your site even if you don't submit as long as you are linked from another website, so many webmaster don't even submit their site anymore and just let the Se's find them for themselves, some say that is a better way. For more on submitting web sites see also this page.
All links will open in a new window so you can just submit and when done close that window and come back here.
Here are some add url pages so you can submit your sites:
|Scrub the Web||addurl|
Here are some directories with instructions on how to submit your sites:
|Yahoo Directory - Paid||instructions here|
|DMOZ - Free||instructions here|
|Zenome - Free||instructions here|
|Superpages - Free & PPC||instructions here|
|Yellow Pages - Paid||instructions here|
|Best of the Web - Paid||instructions here|
Here is a handy tool that lets you find more places where to submit your sites: Inbound Linker.