Useful information should be easy to find and not buried in multiple pages. A frustrated user will not return. Below are tools listed in no particular order.
Ping your website. This alerts multiple search engines about any changes to your site.
Pingler allows 5 free pings per day. A paid program is also available for users that have many sites.
Using SERP tools can help you gain internet exposure and ranking. Good Content is still "King" for top search engine placement