I understand where you are coming from. It is a wonderful and exhausting adventure that is a bit lonely. My DS is only 22 months. Same early milestones as others here... walking and first words by 6 months. Now he knows and loves letters, counting, colors, etc. He has taught himself some sight words.
My only advice is to follow his lead, teaching what he wants to learn, and providing opportunities to stretch a bit. Ignore some of the age limits on toys but keep a close eye on safety issues. These forums are great for toy and book suggestions. A kid's piano has been great for us also.
It is nice to find age ranged activities. I second Music Together if you find a good teacher. Kindermusik with its small age bracket did not go well for us. Sigh. Toddler gymnastics has been fantastic.
A word of warning. I am not much further along in this parenting journey but I have been really surprised by other parents. There is definitely negativity from some that you must be doing something horrible to your child if they can count/speak well/read so early ... "Why can't you let him be a kid?" No amount of talking will convince them that your child just loves learning. My child will chase me around the house with a book, saying "Read please!" ... just follow your child and ignore the unsupportive strangers.
I obsess over future planning, preschools, schools, etc because it makes me feel like I may find a good place for all of us. We will probably do a playbased preschool next fall (lol at the how early this seems).
Lately I am focused on trying to find some nice playgroups for the near term. Having a hard time because the kids his age aren't interested in playing with others yet and the older kids aren't nice to him.
Sorry if I made this more about us than you. Just wanted to let you know you are not alone. If you are in Michigan, we'd love to play some time!
Sorry for the rambling post from my phone.
