IANAL either, but...

While a company's logo may be under trademark or simply copyright protection, you still have a legal "Fair Use" right to use the logo for the purpose of identifying or describing the company.

Most often, this is what logos are used for on a site. For example, "As Seen On... TC, CNN, blah blah blah". They obviously cannot be used to mislead someone into thinking the company is tied to or endorses your site.

Here's an article about it: http://smallbusiness.chron.com/fair-use-logos-2152.html