Hi Sylvia,
My interpretation of blogging differs from Will Richardson's perspective.
I think that what Mr. Richardson is describing is not having to do with blogging per se, but with the cognitive process of sense-making, a key component of critical thinking. His continuum describes the levels of critical thinking, most of which can be supported by current blogging tools to various degrees, depending on the pedagogy (instructional strategies) used.
I think that dismissing journaling and annotating resources as not part of blogging is surprising. However, I think we need to place the cited content in the context of which it was originally written. The dismissal of reflective, metacognitive writing (where links are absent) is underplaying/distorting a crucial motivation for why many bloggers capture their ideas. Briefly put, if it is using a blogging tool, it is "blogging".
I referred to level one blogging activities, called berry-picking, many of which are covered in Will Richardson's continuum of blogging.
Background Reading: Berry-picking activities
Take a look at these posts demonstrating berry-picking:
exemplar one: link log
exemplar two: significant learning
exemplar three:
Annotated Bookmark Summary