ENOTES
| Date | Clue |
|---|---|
| 2021-06-29 | Online memos |
| 2016-03-09 | Online provider of study guides |
| 2015-02-05 | Online provider of popular study guides and lesson plans |
| 2014-02-15 | Messages using Stickies, say |
| 2014-01-05 | Cybermemos |
| 2012-09-30 | Some modern memos |
| 2011-01-07 | Brief online messages |