A brief tutorial explaining how to create stacked bar graphs using some simple CSS and HTML.

The app store is one of the greatest selling points of the iPhone. There are literally hundreds of apps already available (including hundreds of free ones!), with more being added every day. Apple’s device is already a great productivity tool, but there are also some additional applications that can really help you and your business [...]

I had a recent discussion about web app security and we were talking about the not-so-distant past when SQL-injection was the scariest thing since polio. 90% of these attacks didn’t try to return everyone’s credit card information from a database (people knew pretty early to be careful when storing this stuff), they were attempts to simply return a username and password. I wanted to go over a simple method for guarding against password retrieval that should be second nature for any developer.

Over the past few years, our company has had several clients who have needed a smaller shopping cart, usually to only sell a couple items. Because we expected sporadic traffic, we were tentative to go with a packaged shopping cart and merchant service. That just seemed like a lot of overhead. Thus, I have developed a few different ajax carts using paypal. I realized it would be nice to package this up, and create a lightweight, easy-to-use, flexible shopping cart.

So we made simpleCart(js). The cart is a 10.5kb javascript file that uses cookies to keep track of the items in the cart. Thus, simpleCart(js) doesn’t require any databases or programming. You simply need to know some basic HTML and have the ability to copy and paste. However, it can easily be expanded to use databases or contain more advanced options.

Should you price your clients with an hourly rate or based on a fixed quote?