After a few weeks of php I have now finished version 3 of my gourl website. I have re-written the backend coding and added some new additional features like spam protection. Please have a go and if you detect any bugs or problems, please let me know. http://gourl.biz/
Make the logo text right on top clickable to go to the homepage. Also, in your navigation have a link to go to the homepage. When creating a url, I found no way to "click" back, other than using the BACK button in firefox. Beneath the url entry field, it says "For legal purposes your IP address has been recorded..." Is that recorded before or after the url is created? A user will be annoyed of having it recorded for them just visiting the site (although, I'm aware we stats programs do that anyways). Perhaps have a CHECKBOX that mentions this text next to it so use can click it after they read the text. It's also confusing with 2 submit buttons, one for just creating the url, and one for with a tag. You should have 1 field for the url, 2 radio buttons - one for no tag, one for with, and 1 submit button. If the user selects the TAG radio button enable another textfield, else disable it. This will keep your site more user friendly.
Added "HomePage" Link Its only logged after adding a url. I don't like the idea of having a checkbox as I like to keep the site simple as possible. I will re-phrase the text so it is easier to understand. I do need to scare off those people who use the service for abuse though. I will replace the secondary button with an optional checkbox should the users wish to use a custom tag instead. Thanks for the feedback