Online: Learn about the five most popular social media networks, the benefits of using each one, understanding your audience, what to create and more, presented by SCORE, 7 p.m., hosted by Brentwood Public Library, free, register for a link, brentwoodnylibrary.org, 631-273-7883.

Levittown: Learn how to optimize your LinkedIn profile so that you can get the job you want and effectively develop your career, 7 p.m., Island Trees Public Library, 38 Farmedge Rd., free, resident cardholders can register, islandtreespubliclibrary.org, 516-731-2211.

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TUESDAY

BUILD YOUR BUSINESS WITH SOCIAL MEDIA

Online: Learn about the five most popular social media networks, the benefits of using each one, understanding your audience, what to create and more, presented by SCORE, 7 p.m., hosted by Brentwood Public Library, free, register for a link, brentwoodnylibrary.org, 631-273-7883.

OPTIMIZING YOUR LINKEDIN PROFILE

Levittown: Learn how to optimize your LinkedIn profile so that you can get the job you want and effectively develop your career, 7 p.m., Island Trees Public Library, 38 Farmedge Rd., free, resident cardholders can register, islandtreespubliclibrary.org, 516-731-2211.

WEDNESDAY

BRAND STORYTELLING

Hauppauge: Learn five detailed steps to create a powerful brand story for your business, presented by Long Island Advancement of Small Business, 8:45 a.m., Long Island Cares Center for Community Engagement, 75 Davids Dr., $25 online, $35 at the door, liasb.com, 516-473-7202.

LEADING PRACTICES FOR NONPROFIT BOARDS

Online: Discussion on current leading practices, a healthy board cycle and tips that will help your nonprofit board function efficiently and effectively, 9 a.m., Miller Business Center, free, register for a link, millerbusinesscenter.org, 631-585-9393.

SMALL BUSINESS WORKSHOP: MARKETING STRATEGIES

Port Washington: Discussion on developing a marketing plan, performing market research, pricing, advertising and promotion, internet marketing, tracking results and more, 7 p.m., Port Washington Public Library, 1 Library Dr., free, register, pwpl.org, 516-883-4400.

A trip to the emergency room in a Long Island hospital now averages nearly 4 hours, data shows. NewsdayTV's Virginia Huie reports. Credit: Newsday Staff

'I'm going to try to avoid it' A trip to the emergency room in a Long Island hospital now averages nearly 4 hours, data shows. NewsdayTV's Virginia Huie reports.