Never has something seemingly so simple as page tagging caused so many problems.
Poor tagging is costing companies thousands of pounds a month from wasted web analytics, duplicate affiliate commissions and marketing that isn't tracked properly.
If you're building a web application and have high hopes that it will be used by lots of people, one of the most important things to do before you launch it is to test how it functions under extreme conditions.
PHP is installed on more than 20m websites, including some of the most popular websites in the world.
It's easy to install, easy to work with and when put in the hands of a competent developer can achieve the performance and scalability that highly-popular websites and demanding web applications require.
Lots and lots of people use Google AdWords, and have more recently layered Google Analytics over the top. But the search giant has confused these users by re-defining a well-defined business metric: 'ROI'.
This has led to confusion within companies - and at worst, caused Google AdWords users to think their campaigns are more profitable than they are, and thus pump more money into Google while decreasing their own business' profitability.
So has Google 'done evil' this time?