Computer with appropriate software to block inappropriate sites, a printer
When your child shows an interest in a subject, sit together and research the topic on the internet. Read and print your findings.
Sit at the computer together. If she can, have your child type in the topic that she wants to learn more about (you can spell the words for her and let her find the keys on the keyboard, or let her try to "sound out" the words' spelling). Limit “screen time” and come up with rules together about computer use when an adult is not present.