Text site title, logo graphic, text tagline, navigation, ads, and social media can all go in the header.
The default, out-of-the-box settings for the header are (1) text site name, and (2) tagline. It’s easy to turn that into a logo (which replaces both the title and the tagline). The right side of the header, again out of the box, is empty. If you’d like advertising in the right side of the header, there’s a module that’s a checkbox away from being activated. Easy. If you’d like more in that right-side header than an ad, then you’ll need to get a little technical, but it was a feature in such demand that we created a solution: see: Adding a widget to the WOO Canvas Header.