I'm currently mulling over a change in the blog (while sitting on the porch, soaking up the sun - I'm off work with a lergie, so mulling is all I feel like doing at the moment!). Keeping momentum on a blog is pretty difficult, our entries have tailed off to one or two a month and I suspect people don't visit as much without the regular updates.
A change is as good as a rest, so one way of getting a bit of enthusiasm back would be to switch to doing a monthly video diary or podcast, backed up with a photo gallery and website. We'd set it up so that you could subscribe via a newsfeed or iTunes and have a set date each month when we published. Whaddya think?