The teachers at Knewton GMAT have created a series of free GMAT Question Video Guides to challenge you and help you answer the toughest questions on the GMAT test. You will have an opportunity to answer each question before watching the explanation video to see if you were right. See all of the free Knewton GMAT Question Video Guides.

Many of the nation's top business schools demand GMAT scores from their applicants, but a good portion of the schools are also allowing GRE scores. If you did not perform well on the GMAT or if you think the GRE might be the better test for you, you can use this relatively new allowance to submit GRE scores instead of GMAT scores. The GRE tests your verbal reasoning, quantitative reasoning, and analytical writing skills. Read more about taking the GRE.

Samsung will be awarding ten $1,000 scholarships to U.S. high school students on June 15, 2012. To have a chance at winning one of the Samsung scholarships, you must answer the following question (in 300 words or less):

How will technology enable the collaboration process in the future?

Essays will be judged on original thinking (30 points), writing quality (30 points), and real world relevance (40 points). Your essay must be submitted by May 31. You must also be sponsored by a teacher. Read more about the Samsung Scholarships.

Admit Advantage hosts free MBA webinars for aspiring business students. Webinars cover topics like MBA branding, MBA applications, GMAT prep, essay writing, and much more. Webinar enrollment is free and required if you wish to take part in any of the sessions. Read more about Admit Advantage's free MBA webinars.