Building a great website is only the beginning. Once built, you need to drive traffic and measure performance.  Fortunately there are a number of web tools which can help.  Here are just a few tools which you can use to put more power in your eMarketing strategy.  Best of all, these tools are FREE

Google Webmaster Tools: Webmaster resources help answer crawling and indexing questions. Using these tools improves traffic, enhances the site’s functionality and helps grow your internet business.

Google Analytics: This tool helps you write better ads, strengthen your marketing initiatives, and improve conversion. The statistics show where  visitors come from and how they interact with your site.

Google Alerts: Receive email updates or notes to your Google Reader on the latest relevant Google results (web, news, etc.) based on your choice of query or topic. For example: select your company name, the name of your competitor or other hot industry topic and when Google indexes a page related to the topic you have selected you will be notified.

Yahoo Site Explorer: Explore all the web pages indexed by Yahoo! Search. View the most popular pages from any site, dive into a comprehensive site map, and find pages that link to that site or any page.  Be sure to submit your site to be crawled as well!

SEOBook.com Keyword Research: A fast, easy, reliable and FREE way to perform keyword research. This tool shows you how many people search for keyword phrases in Google, Yahoo and MSN.   This tool can help you write more effective copy to help you improve your position in organic searches.

For a more complete list of great tools check out this post from WebBizIdeas.com