When we buy e-books, do we own them?

Most we own; others we subscribe to. Here are a few examples of:

• e-books we own:
  • Springer e-books (over 14,000 titles)
  • Early English Books Online (EEBO)
• e-books we subscribe to:
  • major reference works like the Oxford English Dictionary (OED) and Britannica - because they are constantly updated
  • Canadian Public Policy Collection (new content added each year)
• freely available e-books:
  • RAND