Portals, Self Service etc

Wow, where do you start with Self Service and Portals. So much has changed now, it is difficult to know what is what.

Feature	You Need	Description	Help Link	Replace With
Public Solutions		Show solutions on your website. A really really ugly way of doing it.	https://help.salesforce.com/htviewhelpdoc?id=customize_publicsolutions.htm&siteLang=en_US	Chatter Answers in Sites Or Knowledge in Sites
Self Service Portal		A way of putting all your self service options out on the web A nice article about Portals http://www.shellblack.com/portals/self-service-portal/	https://help.salesforce.com/apex/HTViewHelpDoc?id=customize_selfservicejumpstart.htm&language=en_US	Chatter Answers in Sites
Customer Portal		A newer version of the Self Service Portal	https://help.salesforce.com/HTViewHelpDoc?id=customer_portal_setting_up.htm&language=en_US	Communities
Solutions		Q&A topics for internal and web use
Knowledge	Performance Edition (EE additional cost)	A typical knowledge base. Not customer created. But customers can see it on your public website or on your communities. See Knowledge	https://help.salesforce.com/HTViewHelpDoc?id=customer_portal_setting_up.htm&language=en_US
Ideas	Professional and up	Allow customers to submit and vote on ideas. Like the Salesforce ideas site. Use on communities or public sites	https://help.salesforce.com/HTViewHelpDoc?id=ideas_about.htm&language=en_US https://na1.salesforce.com/help/pdfs/en/salesforce_ideas_implementation_guide.pdf
Answers		Q&A but other members of the community answer.	https://help.salesforce.com/apex/HTViewHelpDoc?id=answers_using.htm&language=en_US	Chatter Answers
Chatter Answers		A Q&A but other members of the community answer.