Straight from Free Frequent Flyer Miles:
100 easy miles are offered for learning about the benefits of the Energy Plus/Continental Airlines partnership by April 30, 2010. Use promo code 57077.
100 easy miles are offered for reading about earning miles for paying your energy bills on your Continental Airlines credit or debit card by April 30, 2010. Use promo code 57078.
Update 3/13/10: Miles have already posted for me.