Andrew Loh started Brainy-Child.com when his second son was born. He was interested in how to maximize his sons' IQs, but couldn't find any information on the topic, so he decided to create his own site to help other parents. The site is filled with the latest research on everything from birth order to the best foods for children's intellectual development. There's also a monthly newsletter that keeps readers up to date on ongoing research and studies.

Another useful site is Tina Blue's Teacher, Teacher. Combining her college teaching expertise with her 18 years' experience in nurturing gifted children in her home daycare, she has put together suggestions for improving a child's understanding of mathematics, which becomes more crucial as a child gets older.

While most peer-reviewed data suggest that the best way to raise an infant's IQ is through interaction, these resources can certainly provide ideas for parents who may not be sure what type of interaction is best, as well as tips to maximize their child's intellectual growth as the child grows.