Description:  You can either install the script on your site, or just forward any site submission requests from your web page to their server. You can't beat that!

Installation : Average. Real easy if you just link to their server.

Stability : Very.

Strengths:

• Shows you if the submit was successful. Confirmation Email will be sent if you like
• You may choose which engines to submit to.
• You only need to enter your site and your Email
• You don't need to install the script, therefore it is kept up to date by Simple Submit!

Weaknesses :

• Not always up to date with search engine data. But hey, it's free!