there are a lot of sites that are offer you to submit your site to search engines and directories for free.

beware that submitted your site to search engines are not needed and not recommend mostly for google !.

if theres is a web sites links that point to your site then search engines will found you them self and it the most recommend way.

many seo exports says that submitted your site for google can harm your site google ranking, because google should find your site in a natural way as your links should be.

also directories links are count by google as untrusted link and most directory’s can lower your trustrank score by google.

find more about:

- Google Trustrank Algorithm

- Directories Submit and Google