Id Like to find out how to create facebook apps

Facebook allows you to create applications that appear to the user in 2 different areas (primarily):

1. The profile: This is the 'main user page' in Facebook. It would be great to have your widget displayed here, but the big limitation is that applications that use Javascript are not allowed here (You must use FMBL, the facebook version of HTML). However you can display a small ad to take the user to the Canvas page and to the Javascript App.
2. The 'Canvas page': This is an entire page that your application gets to use (you can have multiple pages if you want). On these pages you can choose to display content from another website through an iframe.

So here are some of the basic steps that you need to perform for creating an application and get it posted in the canvas page:

1. Create your demo page: This is a page that the users will see on their canvas page. If you already have a page code with you then it is fine else you can follow the link. The link talks about an example application which you can use as reference. Save the file for the demo page somewhere in your website.
2. Login to FaceBook. In case you don't have an account create one.
3. Install the Developer Application: This is what will allow you to create the application. Please go to the developers page to get it.
4. Create your application: Click on the "create application" link.
5. Fill in the details for your application:
1. Application Name: Any name you want. Check the Terms of Service checkbox.
2. Click 'Optional Fields'.
3. Callback Url: This should be the root directory where the demo page is found stored. You must also add a '/' at the end.
4. Canvas Page URL: This is the most confusing part. Enter a directory name for your applcaition. The name must be 7 characters or more, and must be unique from other Facebook applications. When you add 'apps.facebook.com' to the front you have the Canvas page URL.
NOTE: If you use upper case in the Canvas Page URL, it will be converted to lower case automatically. Also, case is important, so if you use upper case in your links later on they won't work.
5. Tick 'Use iframe': This means that your canvas pages will use an iframe.
6. Application Type: Leave it at 'website'.
7. Can your application be added on Facebook?: Tick 'Yes'.
8. Application Description: Use any description that you like to add.
9. Default FMBL: This is the text that will go on the user's profile.
10. Default Profile Box Column: Tick 'Narrow'.
11. Side Nav URL:OK, here is where we put a link in the side navigation to the canvas page.
6. Add application: From within 'My Applications', click on 'View About Page' for your new application. Then click 'Add Application', and confirm this.

It's pretty easy. After couple of times you'll be a master of it ;D

I hope it was helpful.

Tomas