Resources:
Monergism - Web-based source for theological content with free E-books.
Devotionals (ligonier.org) - Excellent source for daily devotionals.
Baptism, Doctrine, Theology:
What is Baptism? R.C. Sproul
Why Baptize Children?
What is Calvinism?
What is the Reformation?
What is Covenant Theology?
Membership:
Why Church Membership is Important!