Originally posted on Mashable: 5 Tactics to Grow Your Email List.

Back in January, many email marketers said increasing their lists was their top goal for 2013. Well, spring is here. Is your mailing list growing as fast as your flowers and lawn? If not, it’s time to execute a new plan.

Many marketers have email addresses only for 30% or less of their customer and prospect lists. They’re tempted to revert to their direct-mail experience and reach for a quick fix like email append (“e-append”) and list rental/purchase.

But in today’s engagement-based inbox placement world, this “quick fix” approach can give you more headaches than new sales.

If you seek quantity over quality in list growth, you’re practically inviting the ISPs either to block your entire opt-in mailing list or route everything to your recipients’ bulk folders, where they’ll languish in obscurity until the ISPs dump them automatically.

So, what should be in your email list growth plan? Below are five tried-and-true methods to ignite your email list growth, in a safe, permission-based way.

1. Make It Easy to Opt In on Your Website

Your customers and prospects must be able to find your opt-in form easily on your home page. This advice has been around for years, but today’s web designers apparently didn’t get the memo. They position Facebook and Twitter icons prominently but send you on a search-and-rescue mission to find the opt-in field.

Many websites undersell the email value proposition, using just a link saying “Sign Up for Email” relegated to the homepage footer. Worse, the email opt-in call-to-action isn’t even on the page. Make your forms stand out.

If you want to get more opt-ins, make the email invite more visible. Use a benefit-based call-to-action, and test an offer that you subsequently deliver in your welcome series.

2. Don’t Stop at Just One

Add more opt-in forms throughout your site and in various placements: above the fold (the horizontal halfway point on your website, like the fold in a newspaper), below the fold, in the right rail, in left-hand navigation and on a dynamic layer that displays according to visitors’ site activity.

Test these locations to see how many more opt-ins you can drive, each one alone and in combination with each other. One opt-in form on a page might drive X, while having two opt-in form placements on a page might drive 1.5X to 2X.

At the EEC Summit in 2012, Tommy Hilfiger reported that his company drives 2% of all site visitors to opt in by using a dynamic opt-in layer served to new site visitors on site entry.

3. Collect Emails at Your Stores

Ask your customers to opt in for email at your checkout counter or when requesting an email receipt. However, be sure you are collecting high-quality names.

You’ll have to develop a request procedure that helps you overcome two big pitfalls of point-of-sale requests: phony addresses, either provided by reluctant customers who can’t say no to the request or keyed in by sales associates who have to meet email quotas.

Mistakes, which happen when sales people misspell a written address, misunderstand a customer’s spoken address or omit a crucial detail like the “@” symbol.

Here are a few suggestions for collecting more and better addresses:

• Let customers type in their email addresses on a POS touchpad or credit card terminal.
• Give them an offer or benefit for signing up in-store.
• Explain what they’ll be receiving.
• Get explicit permission before adding the address.

4. Make It Mobile

Consumer adoption of mobile sites and apps makes mobile another important collection point for opt-in for both email and SMS text. The best mobile site home pages have two opt-in forms: one for email, one for SMS. Remember the constraints that mobile puts on viewing and data input.

Don’t ask users to fill out lots of form fields. Keep the form short and simple. You can collect more information later in your welcome series using progressive profiling.

5. Remember Your Social Networks

Give your Facebook followers a simple opt-in form page. Call out the benefits and differences between your social experience and your email communications.

Consider using social login, also known as social sign-in. This uses existing login information from social networks such as Facebook or Twitter to sign in to a website without having to create a separate login account specifically for your website.

You can also use this process to allow your site registrants to quickly and easily sign up to receive your marketing emails.