- 2008-02-07 | on closed content as copyright violation obfuscation
- 2007-12-12 | on creative commons licensing
- 2007-09-08 | Open Education Course: week 2 reading
- 2007-08-10 | Open Education License - Attribution is important
- 2006-10-25 | Creative Commons - why don't more people "get it"?
- 2005-12-16 | On the downside of freely sharing stuff