To properly integrate Facebook's Login For The Web to permit your web app users to authenticate themselves in your app using Facebook, I believe that if your app needs any modicum of security, you should also verify the signature on the "Signed Request". Sounds easy enough, Facebook even provides a PHP example. Here's my Coldfusion version.
I'm sure you've already heard of DNS otherwise known as the Domain Name Service, but did you know that this service is just as important as your website hosting service to make sure your site remains available to your website visitors?
Sometimes you just need to build a website from scratch. However, trying to get your HTML & CSS code to display correctly in the plethora of browsers in use today can be a nightmare. Thrown in the netbooks, mobile devices and tablets with touchscreens, and you'll think you'll be up all night pushing bits and pixels around. Fret not, here's a solution.
In this post is the function I wrote to calculate APR based on some formulas I found. One of my requirements was that this formula needed to produce exactly the same result as the Excel RATE function that I frequently encountered while trying to find an APR function.
Ryan Deiss recently released an update to to his original information product "43 Split Tests", calling it 43 Split Tests v2.0 Updated for 2010. In it, Ryan reveals the results of many Split Tests that were performed and determined to increase the conversion rate of potential clients visiting your website or reading your emails and print ads. Here's my review of this product.