Double opt-in, however, ensures the emails you receive are valid and are not being used by bots and the like (remember, sending too many emails to dead email addresses is a sign of a spammer, and you do not want to be mistaken for a spammer). However, you can use tools like BriteVerify which automatically screen out fake addresses or mistakes at the point where the individual is signing up.
However, if you are willing to invest some money in your learning, I would heartily recommend that you stop reading immediately and grab yourself a copy of Start a Blog that Matters. This is an online course developed by the aforementioned Corbett Barr, and I cannot recommend it enough. I have been running through the course material over the last couple of months, and it has revolutionized my approach to blogging (which some of you may well have observed with interest).
Here’s what you do. Optimize your profile, especially your headline and Summary. Then use your customer avatar to create a Prospect Profile. Start sending sending out connection requests to people who match your criteria. Since you’re reaching out to people who don’t know you, they will first glance at your profile before accepting, which is why you want to make sure your summary is compelling.

That’s it, and now you have successfully created your first Email list using MailChimp, and you are officially in the way of becoming an Email-marketer. The good thing about Mailchimp is; it’s design and every field is interactive, so even if you are new, you will never be lost. More over, you can always ping their support for any help, or search for tutorials like this to learn more. You can take advantage of any of these WordPress Email marketing plugins to quickly integrate MailChimp on your blog.
I am not signing up for an account so I don't know exactly how the API works, but if I were setting up an iPhone App to work with this, I would use the rails plugin. Rails gives you JSON communication for free (IE no extra work required) http://guides.rubyonrails.org/layouts_and_rendering.html see section 2.2.9. Then use on IOS app use something like: http://code.google.com/p/json-framework/ to interact with that.
Wherever your one person is, that’s where you want to be. Focus your time and energy on developing a following on just one or two sites. Otherwise you’ll spread yourself too thin. Share other people’s content along with your original content while you’re building up your blog. Determine the best posting frequency for each site and then automate scheduling and posting. Feedly, IFTT and Buffer are great for scheduling other people’s content and Hootsuite and Meet Edgar are great for scheduling original content.
Make sales on autopilot. Creating a sales funnel out of an email autoresponder sequence is a widely adopted strategy used by information marketers, but it can also be used by software companies, eCommerce businesses, and service providers. For example, it could consist of a series of educational videos, a sales video, and follow-ups to sell your information products. Or, you could create a sequence of free educational emails, and then invite leads to a live or recorded webinar where you make an offer. For eCommerce businesses, your sales sequence could include promo offers for products your subscriber has just viewed on your website.
MailChimp does not allow content that references the terms “make money at home”, ‘get rich quick’, or other similar terms. These keywords overlap keywords used by ISPs and SpamCop organizations to block content associated with spammers from those industries. This generates too much risk for us to encounter automated spam filter blocks for all of our customers.

This isn’t an issue of the legitimacy of your business and we certainly don’t have anything personal against your content, however we do have to protect the deliverability of all our customers and the risk associated with these terms is too great for us to take on at this time. Here is a page with more information http://www.mailchimp.com/support/compliance/about-terms-of-use-violation?lptkt=LTK143038471765X


Avoid jargon, buzzwords, and acronyms. Writing copy for emails or landing pages is different than writing the academic research paper. Marketers should cut down on flowery language wherever possible. Use a conversational tone. Check your text with the Hemingway App. Don’t worry; replacing big words with common synonyms won’t make you look uneducated. Most people in the United States read at a 7th-8th-grade level.
Now, you can automatically send highly relevant emails encouraging them to buy the product or service they were considering. Customers who received multiple abandoned shopping cart emails are 2.4 times more likely to complete the purchase than those who receive only one followup email, according to Experian. Try sending the first message one day after, a second message 48 hours after, and possibly a third message within three or four days of abandonment.
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