Like many 7- and 8-year-old girls online, Emily and Kayla Strickland are regulars to Barbie.com and the virtual world Webkinz. But much to their mom's delight, the sisters also have been longtime fans ...

Many young children are able to sing the alphabet song from an early age (it’s catchy, after all!). But really understanding their ABCs, then eventually writing some of those letters out, can take ...