I want to know because some of my projects might require the use of assets that are under a CC license (such as Obsidian Dawn's brush sets for example) and I want to know if linking back to the source of the assets per those licenses are acceptable of it they fall under the "adverting" umbrella.

If this is the wrong board to ask, I apologize.

Yes and they are encouraged actually. =) We always want to give credit where credit is due if possible. Thank you for asking.