As a speaker marketing expert, and professional speaker myself, I feel it's important not to OVER-emphasize social media... and also not to UNDER-emphasize it either. 

As John Jantsch likes to say, "social media is a tactic, not a religion" and I have to agree. Here are 10 social media tips for professional speakers that will help you balance your mix...

1. YouTube One Of Your Speeches – The best form of advertisement when it comes to professional speaking is showing your abilities online. When people have seen your electrifying speeches, they will be more likely to want to book you. Adding in a small link to your site during your Youtube video also will bring traffic to your website. Adding your Youtube video to your website will also get buyers more confident in your skills. After all, with many decision-makers and meeting planners, even the most eloquent writing will mean nothing to them if they cannot watch you in action. Try and get video in front of a high-octane audience. The more excited the audience is, the more dynamic your video will be.
2. Post Blogs On Related Subjects – If you are a professional speaker who makes a living from leadership speeches, having a blog that offers daily leadership tips will get more targeted leads to your site. Moreover, having extremely good leadership information and articles will also get people spreading the word about your site. There are plenty of authors out there who were able to sell books through their blogs; why should you be any different? As a general rule of thumb, the more content that you generate, the better your marketing results will be.
3. Podcasts Are Your Best Friend – Audio recordings of some of your shorter speeches or "snippets" are a great way to advertise your expertise. Including these in a feed will keep fans and customers updated on your latest work, and also will help spread the word about your speaking abilities. Even better, selling audio programs on your site might just make you a little money. Remember to add a little audio blurb in each audio program telling your audience how to book you for their next event!
4. Link It All Together – On each of your social media profiles, add your website link, your blog link, and upload some videos, photos, and audio recordings if possible. Making yourself as accessible as possible will let people know that you are serious and open for new business. People also will enjoy the convenience of having everything linked together in an easy-to-access way no matter where they may land in your web empire.
5. Get As Much Social Bookmarking As Possible – Got videos online? Get them ‘liked’ on Facebook. Encourage your audience to Tweet links to your website, blog, or show pages. Whenever possible, install as many social bookmarking tools as possible, and try to use all of them (Digg, Delicious, StumbleUpon). The more that you can get people to share with ease, the more your expertise will spread.
6. Twitter Is Great – Tweeting your updates is an easy way to keep people informed about your latest thoughts, insights, and audiences. However, the best way that you can use Twitter is to engage your fans and prospective clients. Being able to chat with you via Twitter will show people that you are still a real person, and that your fans/followers matter to you!
7. LinkedIn Is Best For Corporate Speakers – LinkedIn has long been known to attract professionals in just about every field. For business speakers, it’s a smart move to put your biggest social media efforts into LinkedIn. Then take those relationships offline - perhaps even networking with local managers in your area to get you some steady gigs as their favorite professional speaker.
8. Keep It All Short N’ Sweet N’ To The Point – No matter what social media tool you are using, make sure to be direct and impactful in your communications. No one is going to read a page and a half of advertising. No one is going to show up at one of your events if you forget to give the date and time. Expect people to have short attention spans.
9. Use Each Form Of Social Media To Strengthen the Others – For instance, using Twitter to get more Facebook likes will give your Facebook advertising more power. People who have friends on Facebook will see your ad, and then ‘like’ it themselves. Getting people to post your YouTube videos on their walls will make your YouTube marketing efforts more successful.
10. Search Engine Optimize Your Blog – If your blog gets picked up by search engines like Google, using your social media tools to market yourself will be easier. The best part of using SEO to increase your hits is that you can often do it yourself combining titles, tags, and key words into some simple strategies to greatly improve your organic web traffic.