The difference between apologetics and polemics is significant. Where in apologetics you defend your faith (1 Peter 3:15), polemics is going on the offence and attacking falsehood. “We destroy arguments and every lofty opinion raised against the knowledge of God, and take every thought captive to obey Christ,” (2 Corinthians 10:5).
There are a few schools of apologetics, defending the faith. We will outline some useful ministries that provide wonderful information for defending the faith and destroying arguments and lofty opinions set against the knowledge of God.
The first video is a preview of a doco by CMI, which launched one of the most devastating attacks on Evolution we have seen. We suggest downloading this documentary.
Philosophical apologetics is also incredibly useful. Bill Craig of Reasonable Faith has clearly articulated the cosmological argument.
For quick answers, the One Minute Apologist carries through.
Further, for bridging that intellectual content between apologetics and daily conversation, Stand to Reason (STR) provide strategy and clearly articulated defences.