I'll answer your questions in the order you presented them.
1. Add new eMail accounts
You can easily add new eMail accounts by logging in to your Control Panel (www.YourDomain.com/cpanel) using your login information sent to you on 02.05.2010 when you set up your Web Hosting account.
Once you're logged in to your Control Panel (www.YourDomain.com/cpanel)
- Find "Mail"
- Click on Email Accounts
- Add new accounts to your hearts content
Note: InMotion Hosting provides a Video Tutorial for you
2. FaceBook integration
An illustration of good FaceBook integration can be found on Wendy Swanson's site http://www.TheGlobalKitchen.org. (Note: Wendy is also a past attendee of the Internet Marketing Workshop)
- Is this what you're seeking to do? or,
- Simply providing a link back to your Website from your FaceBook page as Wendy has done ( http://www.facebook.com/theglobalkitchen ) ?
Here is a link to an article about "How to Intergrate Facebookk With Wordpress" - http://www.smashingmagazine.com/2009/09/14/how-to-integrate-facebook-with-wordpress/. The author discusses and presents several options for you. Once you decide which option you favor then it should be easy to Google for the Plugin or technique that will fit your needs.
Also, don't forget to use the #2 ranked Search Engine; "www.YouTube.com".
Do a search on YouTube.com for "facebook on wordpress" and you'll see several options for you as well.
3. Allow People to follow you on Twitter
The nature of what Twitter is, allows people to follow you, so I'm guessing you want to integrate your Twitter feed into your Website. Correct?
Here's an example of how Wendy utilizes Twitter - http://twitter.com/GlobalKitchen
Wendy has her FaceBook account provide the feeds to her Twitter account.
There are a number of Plugins that will do this for you. "Twitter Tools" (http://wordpress.org/extend/plugins/twitter-tools/) is a popular Plugin with over 500,000 downloads. You might want to check this one out.
Again, you can search either Google or YouTube for examples of how this Plugin works.
I hope this was helpfull to get you started.