Here is a list of resources you can find online to help with your formation.
Books:
Online New American Bible (via USCCB)
Online Catechism of the Catholic Church (via USCCB)
News Sources:
The United States Conference of Catholic Bishops (USCCB)
Catholic Websites: (Please note that these sites represent the opinions of their organizations, and not necessarily the Catholic Church)
Catholic Answers A great source of news and apologetics.
Catholic.org – Great source for news and information about Catholicism
Catholic Culture – Great source for news and information about Catholicism
American Catholic – home of the online editions of St. Anthony Messenger, Catholic Update and other Catholic news. It is a service of Franciscan Media
Fisheaters – A great source of information on traditional Catholicism.
Audio
Catholic Answers Archive – A great source for audio recordings from Catholic Answers live, a call-in radio program based in San Diego, CA.
SQPN (Star Quest Production Network) – is a multimedia organization specializing in the production of audio and video programs faithful to the teachings of the Roman Catholic Church. This organization is lead by Fr. Roderick Vonhögen.
Social Media – Some good Facebook pages and Twitter follows.
St. Catherine of Siena – Facebook Page
San Bernardino Diocese – Facebook Page
Saint of the Day – Facebook Page
@PopeBXVI – Pope Benedict on Twitter
@sbdiocese – San Bernardino Diocese on Twitter
@CatholicNewsSvc – Catholic News Service on Twitter
@Fatherelder – Fr. Gregory Elder on Twitter
@cnalive – Catholic News Agency on Twitter
@catholiccom – Catholic Answers Live on Twitter
@romereports – Rome Reports on Twitter
@stcsrcia