Baby World - www.babyworld.co.uk
Similar to Baby Centre but includes a surprisingly accurate gender predictor if you're expecting. If you're already a parent, have a look to see if it was correct.
Baby Chaos - www.baby-chaos.co.uk
Chaos in the title but the website is anything but. A growing but already comprehensive source of non-patronising information from pre-pregnancy to the first year of life.
Frugal Dad - www.frugaldad.com
From the site: "A resource for the average family to find financial resources with a conservative slant." That's conservative in the financial sense, or rather financial common sense.