I just saw this post and I was planning on creating a website with a blog here (one of two), one of which is for an events business which will have sponsors... the sponsors are not sponsoring the website or the blog just the events so I would be putting their logo and a description of their business with a link to their website on the sponsor page. Is that ok? This would be entirely created by me not adverts embedded by sponsors or other companies. I would also be putting links to enable people to book onto the events which would link through to an Eventbrite site where they can book and pay (this would take them external to the wordpress site.