I use a blog also.
Pros:
I can post as many or as few details and photos as I like.
I can share with my out-of-area friends and family, and they can read it at their leisure.
It's accessible anywhere, anytime, and not susceptible to damage from fire, hurricane, flood, etc.
I can print my blog into a hard-back book. I like to do this at the end of every year.
I can't think of any cons.
