We used to do hosting, but that has now been taken over by our partners over at Copyleft. They provide the same packages we used to offer, and have also/will improve the services.
Plone is the system of choice for many of our customers. Plone is a modern, fully fledged content management system with additional products such as weblogs, photo albums and media handling available as addons.
We have a lot of experience hosting and developing small and large scale Plone sites, so if you want to feel comfortable knowing that there's always someone there to cover your back, choose our services.
We estimate we had around 500 Plone sites in our server park while doing hosting, ranging from small personal websites to large multi-server, load balanced websites.
For more info about pricing, see our hosting page. You can also sign up for a Plone demo and get instant access to a Plone demonstration site.