Tons of threads on this Andrew - those ads are paying for the forum running costs at the moment, Eddie mentioned it was thousands of squids a year!
The big banner adverts at the top are annoying, you have to wait a moment for them to load before clicking a thread or sub-forum because they tend to jump out of the way.
A good ad-block software will probably work.
**Edit**
Here's the main thread where all is explained;
https://forum.tz-uk.com/showthread.p...ertising-on-TZ