MarkWest Energy Partners, L.P. (NYSE:MWE) reported that Frank Semple, Chairman, President and CEO, will present at the National Association of Publicly Traded Partnerships (NAPTP) 2012 Master Limited Partnership Investor Conference at 4:30 p.m. Eastern Time on Wednesday, May 23, 2012, at the Hyatt Regency Greenwich in Old Greenwich, Connecticut.

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Crown Equity Holdings Inc., (CRWE.OB) offers advertising branding and marketing services as a worldwide online multi-media publisher with its digital network of websites and focuses on the distribution of information for the purpose of bringing together a targeted audience and the advertisers that want to reach them.

Internet advertising has the potential to reach a targeted audience because of the numerous niche websites and the option to run ads with search engine results

CRWE’s division CRWE AD-Services (www.crwe-adservices.com), is a full service multimedia advertising company specializing in internet marketing. It provides modern and unique advertising campaigns, dedicated to offering the most cost effective advertising solutions.

CRWE’s advertising services cover and connect a range of marketing specialties, as well as provide search engine optimization for clients interested in online media awareness.

More about CRWE at www.crownequityholdings.com.

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Tennant Company (NYSE:TNC) will provide an overview of the company, including its strategies for growth, at the 2012 InvestMNt Conference sponsored by the CFA Society of Minnesota. The event will take place in Minneapolis on May 24 at the Minneapolis Convention Center.

Chris Killingstad, president and chief executive officer, and Karen Durant, vice president, controller, are scheduled to present on Thursday, May 24, at 1:15 pm Central time.

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Life Time Fitness, Inc. (NYSE:LTM), The Healthy Way of Life Company, today announced that Michael Robinson, executive vice president and chief financial officer, will present at the InvestMNt Conference sponsored by the CFA Society of Minnesota.

John Heller, senior director of investor relations and treasurer, also will attend on behalf of the Company.


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