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"An email from Twitter sales to prospective advertisers today revealed what brands have been paying for followers on the platform. The memo included cost-per-follower (CPF) rates for Promoted Accounts and cost-per-engagement (CPE) for Promoted Tweets.\nThe CPF runs between $2.50 and $4, while the listed CPE rates come in from $0.75 to $2.50. For CPE, \"engagement\" refers to clicks, favorites, retweets and \"@Replies.\"\nAs has been the case for a while, Twitter advertisers must commit to three months at a minimum spend of $15,000.\nThe email pitches advertisers on the benefits of targeting Twitter users who do not currently follow their brand accounts. It says that Twitter is \"already seeing well over 15x the impression volume of Promoted Tweets targeted in search, with the same stellar engagement rates.\"\nHere's the full sales letter:\n\n\u202CHello, \u202CThanks for reaching out to us to inquire about Twitter's Advertising Products. We are happy to inform you that Twitter is preparing to roll out our next phase of beta testing, and we'd like to invite you to join us.\nPlease review the details of the program at the bottom of this email and reply to this email by COB (close of business), Thursday, 12/8 if your company meets the following qualifications and is interested in learning more. Once I have received your reply, I will follow up with you to set up a call and discuss next steps.\nIn the interim. I definitely recommend that you follow the @TwitterAds account and check out Twitter's Advertising Blog here: http://advertising.twitter.com/.\nAlso wanted to take a moment to highlight that for the FIRST time in the history of Twitter advertisers are able to reach highly-relevant and targeted users on Twitter who are not currently following your account, with engaging and timely messages about your brand. At this time, the product is rolled out to only 25% of users on Twitter, and we're already seeing well over 15x the impression volumeof Promoted Tweets targeted in search, with the same stellar engagement rates.\nWhy advertise with Twitter?\n\n100+ million active users, over 250+ million tweets per day\nStrong engagement rate for all Promoted Products\nAccess to Analytics Dashboards with tweet-level performance data\nVerification of your company's Twitter account\nPromoted Products:\nPromoted Accounts: (PAc)Build a critical mass of loyal followers\nTarget based on keywords, interest, and country\nCost Per Follower (CPF) Auction\nCompetitive CPF = $2.50-4\nPromoted Tweets: (PTw)Amplify your message beyond your core followership\nCost Per Engagement (CPE) Auction\nEngagement = (Clicks + Favorites + Retweets + @Replies) / Impressions\nCompetitive CPE = $0.75- $2.50\nQualifications:\n3-month commitment, $15k - $25k commitment\nEstablished Twitter presence; at least 50 tweets per account \u2022 Previous experience running SEM, Adwords, or Facebook campaigns\nWillingness to provide lots of feedback\nTwitter's IO, Ts&amp;Cs\nExpectations: \nBeta test: Please remember that this program is still in a testing phase. We are looking forpartners who are tolerant, flexible, and committed to helping us perfect our offerings.\nAccount Management and Support: Expect live on boarding and training at initial launch, followed by an online help center and automated support throughout the program.\n\n\n\u2014 Christopher Heine, ClickZ"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/12/06/cost-of-twitter-follower/>