I thought that free content from ad sites was acceptable. To rule otherwise would disallow content from damn near everywhere on the internet. I also thought that links in signatures were OK for the most part. Many other members have them. I don't see either one of those as blatant advertising.
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin