Various people have switched from blogger to wordpress.com and vice versa.

I didn't bother trying blogger software. Once we realized that I had to set up the biz blog quickly, I just chose wordpress. We wanted to capture the experience of living in an Olympic host city during that time and how it affected transportation planning that time.

I guess my attitude was going by my gut instinct and trusting my own adaptability to design very large databases from previous jobs. It had formed a major part of my jobs in the last 15 yrs. Blogging software is actually...quite simple (to me) info. architecture compared to other more complex software I've had to design from ground up.
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http://cyclewriteblog.wordpress.com/ (How cycling leads to other types of adventures, thoughts)
http://velourbansism.wordpress.com