1. Archive your issues or offer a sample issue.
You'll be able to get more of your visitors that are on "fence" to join your ezine, giving you a bigger list to market your products to.
You'll also be able to get more new advertisers as many of your visitors will check out kinds of ads you run, how many ads are published in each issue, and so forth before they purchase ads from you.
2. Promote your ezine in your sig file.
You'll be able to get your visitors, colleagues and email contacts to sign up for your ezine.
You'll also be able get more subscribers when you post your tips and advice to discussion lists and forums that you're a member of.
3. Publish your ezine in RSS.
You'll increase your readership and sales by bypassing all email filters.
You'll also be able to make your ezine's copy more effective because you'll be able to use all forbidden words such as "free" without worrying about your ezine getting blocked.
Tip: You can create as many RSS lists as you'd like at http://ezinepublishers.net/rssautopublisher.html
4. Offer a bonus for subscribing.
Increase value your visitors place on your bonus by telling them how much it would be worth if you were to charge for it.
For example, a $19.00 value.
5. Treat your readers to "subscriber only" sales and discounts.
For instance, you could run a 2 for 1 sale on advertising in your ezine, or you could offer a limited discount on your product.