Has anyone publishe online help to a salesforce community?

Does anyone have experience with publishing online help systems to a salesforce community (force.com site)? Our support site is hosted within a salesforce knowledge community. I'm coming up empty handed when searching for an app that allows me to embed my online help within my community portal. For example, I'd like to publish something like salesforce has done themselves at: https://help.salesforce.com/apex/HTViewHelpDoc?id=deactivating_users.htm&language=en_US