There is a Dutch saying 'verandering van spijs doet eten' - change of diet makes hungry. So a bit of variation in blogpost styles may make people read? Via Tim's blog, I found a wiki developed by Michelle Martin with all kind of blogpost styles and examples! A great resource for bloggers.
An example of a style I never tried:
Debate Posts. In a debate post you argue the pros and cons of a particular position, idea or approach. You can do this either with another blogger or you can debate with yourself, writing both a pro and a con post.
Might be useful for starting bloggers, but maybe even more for longer time bloggers like myself who'd like to try and flex with some new styles. Might lead to new results. Anybody wants to debate with me?