Is some web-hosting free?
The companies which offer free sites, for example wordpress.com or tumblr.com (Yahoo) or blogger.com (Google) do so because they can make money by selling your information and/or traffic to advertisers. If you value your privacy and/or the privacy of the users of your site then it's best not to use "free" commercial services. They may also not offer the level of support and personal service which we can. There are some activist groups providing free hosting, for example: https://network23.org