Hosting is so cheap these days, why would anyone want to use free hosting? especially for some business website... but, ok, there is some service called 000webhost.com or something like that, I've heard they are pretty good... on the other hand, there is blogger.com which is free and pretty good...
Free hostia is always a good choice. They are free (unless you want even more options), and there's tons of different things that you can choose from : forums, guest books, photo galleries, all for free.