How to submit your URL to search engines

Here are the links to the sites where you can submit your URL to search engines:
Submit your URL to Google ( http://www.google.com/addurl/ )
Submit URL to Yahoo ( http://submit.search.yahoo.com/free/request )
MSN URL Submission ( http://search.msn.com/docs/submit.aspx )

But im not recommanding to do it :)