Hi, guys, a few days ago I posted my new Google App Engine toy -- "Site Traffic Comparer" early beta here, now I have updated it into a better version! I even find a name and domain name for it, now it's CompareN.com ! It's a quite useful online tool to help me compare up to 5 web site traffics on the fly, it display the traffic compare graph from compete.com, alexa.com, Google trends and Quantcast. I found it really useful for me to do some online marketing research, I hope you guys here will also enjoy! If you want to give it a try, the URL is here: http://comparen.com, it is and will be absolutely FREE! Some advanced feature include a bookmarklet to allow you install in your browser, so whenever you surf some interesting site, just one click you get an overview of that site. You can setup some default compare sites, so every time when you click the bookmarklet, it will compare current web site with your defaults. Since this web site is build with Google App Engine, you can login with your Google account to save your favorite compare list. So next time when you want see the updated compare result, just click on your saved list! The saved list can display as a badget, so you can put it to your blog, or any web site. I am keep updating the tools, any comments and feedback are welcome! I will adopt your suggestions and feedback in! You can either leave your feedback on the website or reply this post. It's Google App Engine powered, so feel free to stress it!