Hello
As for me, I am professional Web Developer and co-owner of a web-development team with 17 years experience in custom PHP/SQL Development.
See http://www.thebusinessplace.com. This is one of our best PHP projects. The Business Place is an online matchmaking service connecting investors looking to buy a business and vendors trying to sell a business, as well as brokers, banks, venture capital firms and other business suppliers.
Technologies: LAMP (Linux, Apache, MySQL, PHP5), Zend Framework, OOP, MVC, SVN, SQL, xHTML, CSS, JavaScript, DOM, XML, AJAX.
Apart from PHP/SQL we work with CMS, e-commerce shopping carts, credit card integrations, mail applications, mySQL databases, CGI/PHP/Perl scripts.
Feel free to contact me if you are interested in my proposal