Get $75 in free Google AdWords advertising directly from Google:

Fine print:
This action applies only to new Google AdWords customers with a billing address in the United States or Canada. Only one promotional code per customer. By submitting your email address, you only give Google permission to use it for purposes related to the transmission of a Google AdWords promotional coupon. If you submit your phone number, Google may call you to consult you concerning advertising with Google and help you with campaign setup. Also if you do not redeem your coupon, Google may send you one email reminder to make sure you benefit from the offer. The full T&Cs related to the promotional coupon will be included in the coupon fulfillment email.