Automated Google crawler

Hello! I'm looking to create a script that will automatically search in Google (every hour) for whatever keywords my customers want. It's going to be similar to Google Alert system, where you're notified via email whenever Google Bot finds a new indexed page triggering your desired keywords, and notified you via email. The software will have a customer login. That login will give access to a configuration dashboard where each customer can insert the exact keywords the script will automatically search on Google. For example: let's assume a customer enters this keyword "How to learn PHP from home". Well, every hour the script will search for new sites index in Google triggering the keyword "How to learn PHP from home". As soon as he finds that keyword on any site, the script will do the following: 1) Send the website's admin an email. That email will be a template email, but it will embed "How to learn PHP from home" in the header of the email, and our customer's name and email address at some specific points in the email body. 2) Send our customer an email, letting him know of the website where his keyword was found. That's moreless the basic features of the software. I will introduce more features but I will discuss those features in private with the coder who wins the project, and from there we can negotiate price. IMPORTANT - PLEASE READ: 1) I will ONLY take into consideration bids from coders with great PHP and SQL experience. 2) I will ONLY take into consideration bids from coders who send examples of their previous PHP projects.