Now that our site is ready, we want to be able to test and measure the results in the search engines.
Google Says: Don't use unauthorized computer programs to submit pages, check rankings, etc. Such programs consume computing resources and violate our Terms of Service. Google does not recommend the use of products such as WebPosition Gold™ that send automatic or programmatic queries to Google.
There are several sites that will check your rankings for free on the search engines, and some will require a Google API key. First you will need to get a Google Account. Once you have your API License Key you can use the Google API's to check rankings or as mentioned above find software that uses your API License Key.
By following what Google has to say over time you will find your website drawing targeted traffic that you want as well as enjoying popularity in the major and secondary search engines. The quotes I used are from two documents in particular, which have more information for those curious enough to poke around.