Best way to market ebook?

Check this out: Number 1 Book System Presented by Digital Marketer
Also Kindle has a program called KDP and they promote your book for free if you exclusively publish with them.

Google Harvey Segal. He's a really great source for marketing almost anything.
All the best,
Mike

Start creating content that your target audience would be interested in. Get involved with social media. Especially twitter and facebook so you can start building a following. Write articles, create videos and use PPC if you can afford to so you can start driving traffic to your site. I would suggest setting up a squeeze page to send the traffic to so you can start building a list first. Once they are on your list you can sell them your ebook along with other products.

Get yourself press. Contact bloggers about your niche, set up an interview, the same goes for vloggers in your niche and podcasters in your niche. After enough online press, go for traditional print, radio, and TV.

Hey Nat

You can check out The Self Publishers Guide to Book Marketing: Step... for ways to market your ebook or paperback

It has step by step instructions, templates and examples so that you can quickly and easily promote your book and maximize your sales.

All promotion methods covered are either free or very affordable.

"The Self Publishers Guide to Book Marketing"

Getting Started
1.1 Why Are You Publishing?
1.2 Who Will Read Your Book?
1.3 How Will You Sell Your Book?
1.4 Essential Author Details
1.5 Creating a Book Cover
1.6 Writing a Book Description
1.7 Choosing Your Genre
1.8 Choosing Your Keywords
Checklist - Getting Started

Pre-Release Promotion
2.1 Writing Book Promo Text
2.2 Creating a Landing Page
2.3 Writing a Basic Press Release
2.4 Distributing a Press Release
2.5 Creating Social Media Buzz
Checklist - Pre-Release Promo

Publishing Tips
3.1 Kindle and KDP Select
3.2 Publishing Tips
3.3 Author Central
3.4 Pricing Tips
3.5 Pros of eBook with Paperback

Promote Your Published Book
4.1 Goodreads
4.2 Shelfari
4.3 Book Giveaways
4.4 Updating the Landing Page
4.5 New Press Release
4.6 Contacting Book Reviewers
4.7 Approaching Book Bloggers
4.8 Creating a Book PDF Promo
4.9 Creating a Banner
4.10 Creating a Video Trailer
4.11 Donating Books
Checklist - Published Book Promo

Revisions
5.1 Handling Reviews
5.2 Revising Your Book

Hope that helps

Be a part of a community that's all about writing/self-publishing (this is my shameless plug for platform41).

One product I do recommend if you're looking at Kindle publishing is KD Publishing Pro. It makes the process of actual creation a lot faster.

Depends on what kind of marketing you're thinking of doing. You can get Facebook shares, likes, used to be able to get tags... but they took that away. SEO is a great way to get the book ranking better in amazon as well as google

I think you should upload your ebook to Amazon.com. You do not have to promote yourself as you have the biggest online company selling your book for you. You also get reviews that you can use and the commission isn't bad either.
Amazon is worth considering but you should find out more about the costs and the conditions.
As far as I know:
No cost for submit to Amazon, 70% royalty for sales in US and UK, 35 % royalties for all other countries, 60 days for payout, and additional download fee.

Using Amazon's free promo days is a great way to let people know about your book and to get that inital buzz going.

Then it is time to start working on the next book and let Amazon's internal engines do the rest.

Promote yourself. Give away free content to build a list, then email this list 3-4 times within a 2 week time frame. Construct your emails to where you want to provide more valuable tips, but the real special ones are in your ebook. Hyper link to your capture page and watch the paper stack.