Honestly, the best way to learn more about the Book of Mormon is to read it for yourself. The Church of Jesus Christ of Latter-day Saints (aka the Mormon Church) will provide you with a copy of the Book of Mormon free of charge. You can read through it and decide for yourself.

Mormon missionaries don't bite. In fact, they're very friendly and would love to teach you more about the Church as well as answer your questions. Visits with the missionaries usually last about 45 minutes. And they'll come to your home.

Mormon.org is the public-facing website of The Church of Jesus Christ of Latter-day Saints and has tons of additional information, including rich media and official doctrines. Poke around a little. You're bound to find something good.

Mormon Sunday services are open to the general public.  In fact, you'll probably receive a very warm welcome from fellow church goers.  The Sacrament service lasts approximately 1 hour and is followed by a 2hr block of Sunday School.