Add examples of typical and not-so-typical problems here

Presentation docs perhaps of interest:

• Charleston Conference 2011: "From problem to Solution in E-resource Troubleshooting"
  http://www.slideshare.net/smarcin/from-problem-to-solution-in-eresource-troubleshooting
  Slides 5-14 show the "Nature of E-Resource Problems @ Columbia University"
• Charleston Conference 2012: poster session: "Patron Problems...Or Opportunities for Improvement?"