1. Salesforce Customer Community
This is forum supported by Salesforce and answer by Salesforce user community global. Post your questions from http://success.salesforce.com/answers. Usually a 'hero' (like SteveMo, phiberoptik, etc) will answer your questions. But as this is a forum, don't expect your questions will always response. Try to post your questions as clear as possible.
This forum particularly only for Salesforce admin, if you are not admin, please check with your admin before post questions here.
2. Salesforce Support
Open a case from 'Help & Training' link next to your name in Salesforce.com top right corner. Click "Contact Support" and "Open a Case". You also can "Ask the Community" from this page, which will be redirect to the same Customer Community above.
If you do not purchase Premier support or using Unlimited Edition, please expect 2 business days response. For Premier support customer, response time is 2 hours.
As today is the last day of 2012, I would like to say "Happy Holiday and Happy New Year 2013, may the year of 2013 ahead bring all of us a better health, prosperous in love and live. GBU!"
Also, today I hit rank #5 for the first time in Salesforce Community Support.