It's taken a while, but a majority of Americans aged 65 and older are now finally using the Internet or email, according to the results of a Pew Research Center poll released Wednesday.

Reporting its findings, Pew's Internet research unit said 53 percent of senior citizens in the United States go online, although Internet and broadband use drops off "significantly" among those older than 75.

U.S. President Barack Obama on Wednesday marked the 68th anniversary of the D-Day landings in Normandy, with a personal tweet, which said the deeds of valiant soldiers are not forgotten.

"68 years ago today - D-Day - the brave members of the Allied Forces stormed the beaches of Normandy. We have never forgotten their heroism. -bo," Obama said, his initials denoting a tweet composed by him and not an aide.

The world's city dwellers are fast producing more and more trash in a "looming crisis" that will pose huge financial and environmental burdens, the World Bank warned Wednesday.

Urban specialists said the growing pile of trash from urban dwellers is as daunting as global warming and the costs will be especially high in poor countries, mainly in Africa.

One by one the athletes plummet from a five-meter (15-feet) wall, land on a trampoline, spring back upward and spin up to 360 degrees before bouncing off a side wall and striking a pose.

This is not gymnastics or acrobatics but "wall trampoline" -- an emerging sport with a growing fanbase that hopes it will make a grand entrance on the world stage at the X Games, the annual extreme sports event, next year.

New videogames mixing music with real-world action promise to get players off the couch, turning basketball dribblers into "true ballers" and helping new moms tighten their tummies.

"NBA Baller Beats" laid claim to being the first videogame to incorporate basketballs into the action, challenging players to dribble in time with high-energy music in order to score points.

More than 9 million students sit China's notoriously tough college entrance exams on Thursday, with "high-flyer" rooms, nannies and even intravenous drips among the tools being employed for success.

With just 6.85 million university spots on offer this year, competition for the top institutions is intense, and attempts to cheat are rife -- more than 1,500 people have been arrested on suspicion of selling transmitters and hard-to-detect ear pieces.

India's Planning Commission, which plots the country's economic future, defended itself on Wednesday over a 3 million rupee ($54,100) bill for upgrading toilets.

The cost sparked outrage after a local activist unearthed the figure through a Right To Information request about work done on toilets at the commission's headquarters in New Delhi.

Polish software specialist Tomek Wawrzyczek was pleasantly surprised when he received a 50-centimetre (20-inch) tree seedling in the post.

He promptly planted it in his garden but still has no clue who sent it.

Five leading U.S. global companies, including Coca-Cola and Ford, unveiled Tuesday a joint effort to develop 100 percent plant-based plastics in their products, cutting the use of fossil fuels.

Coca-Cola, Ford, Heinz, Nike and Procter & Gamble said they were launching a working group focused on speeding up the development and use of 100 percent plant-based PET plastic.

The United States has cut funding to a popular Pakistani version of the children's program "Sesame Street" amid allegations of fraud and abuse, a U.S. official said Tuesday.

The program, run under the umbrella of the U.S.-based Sesame Workshop by a local theater group, had been awarded some $20 million in funds from the U.S. Agency for International Development (USAID).