If you publish a website for UK users and have a spare spot of extra space which available for ongoing paid advertising, then you should check out Matched!

The great thing about Matched is that
they have a pool of advertisers who seek to run ongoing banner ads on small and even personal websites, on an ongoing basis where the payment is not determined by clicks or quantity of page views. The ads are all family-friendly, clean and reputable.

If your site or blog is accepted, then Matched will pay you a £5 sign up bonus (once you have shown an ad for a month), and for each allocated ad that you accept and publish on the site you will earn £3 per month. You submit individual pages for consideration, and can have up to five pages per site approved to show an ad. You can have up to five sites showing approved ads. So, optimally, you can have 25 pages (ie, five websites with five pages each) showing ads earning you £3 each, every month, for a total payment of £75 per month. You can choose from a selection of ad sizes, and the email customer support is very good. Payment is every month, either by direct bank transfer or PayPal. This is quite like a plug-and-play program, in that it is very easy to submit your pages for consideration, and once ads are allocated you simply select the preferred size and then copy and paste the ad code into your site. Matched is a great way to get some ongoing ad juice flowing through your website.