"Poaching on new talent is nothing new," according to the introduction of this infographic exploring the competitive hiring practices of today's top tech companies. "But the hiring games have recently become more intense as tech giants hungrily compete over a limited pool of skilled industry professionals."

Companies are offering, in some cases, huge salaries and bonuses we haven't seen in years, if ever. And that's just one of the tricks they have for convincing talented engineers to join their ranks. This infographic, created by Column Five Media for Udemy, looks at some of the others. "Here, we explore ... which companies are desperately clutching onto their talent and how they are keeping them," they write.

Infographics are always a bit of a hodgepodge of statistics culled from a variety of sources. Here, we sort through the clutter and pull out some of our favorite facts and figures:

  • The American Society for Training and Development predicts that by 2015 60 percent of the new jobs being created will require special skills held by only 20 percent of the population. In 1991, by contrast, less than half of U.S. jobs required skilled workers.
  • There has been an explosive growth in mobile and cloud-based applications, as well as innovative Web development that is causing American businesses to fiercely compete for tech-savvy talent.
  • The career site Dice.com surveyed hiring managers at various companies and found that more than half predict tech talent hunting will get more intense over the course of the year.
  • Twelve percent of Facebook's employees used to work at Google.
  • At the end of 2010, Digg fired 25 of its employees. Almost immediately, job offers started to pour in from other companies such as Groupon, Twitter and IGN.
  • With the fear of having their top tech professionals or potential recruits ditch them for other companies, the big names are finding ways to retain and find the very best. Some common allures: competitive salaries, flexible hours, raises and bonuses, special perks, lucrative stock options and better health care packages.

Check out more Infographics on the Technology Channel.