'-en' verbs and 'their' adjectives
I have not listed this as a blog, but it's 'bloguesque&' - in that it is an area that I have simply reflected on as a result of questions in a summer school.
The .xls file is the main resource; the .doc file gives further explanations where necessary.
Update, 7 May 2013: One new entry (less/lessen) and various notes improved.
Update 8 May 2013 - correction and clarification