I have found the easiest way to get more engagements is to directly contact the organizers of the events that you would like to speak at. Ask if they would like

I have found the easiest way to get more engagements is to directly contact the organizers of the events that you would like to speak at. Ask if they would like an abstract of the talk you would like to present and find out if they have open spots in the field that you would like to get a spot in. Strangely enough ad-words are pretty cheap for tech speaker keywords so you could try an ad campaign targeting relative search terms. Like anything else, marketing is the key here. View yourself as the product and think about the ways you would sell that product. A speaker web site would be in order, any video's you have of your engagements should go there. Bio info should be included as well as a calendar of talks that you have and will give along with any supporting information for those talks. If you would like more suggestions, feel free to contact me, my email is in my profile.