I'm really surprised nobody mentioned http://www.portlandareahomesales.com/
If you click on the market insider tab at the top you can see crime stats, info about schools, weather, even education level of the homeowners in the area, and tons more. Easily compare areas side by side. I use it all the time. There is a map view on market insider that will let you see restaurants, shops, grocery stores, churches, parks, museums... Its all there. You can also freely search all of the Oregon MLS to see homes for sale.
My daughter just turned 7 and my niece is 3. We live in the Hillsdale neighborhood in sw portland and we walk all over the place. Finding an area that is close to kid activities as well as adult was important to us. Kids needs lot of exercise and we need our sanity too. Portland is pretty cool in that there are many neighborhoods that are like mini towns. You have your grocery store, library, park, brewery, and school all close to each other.