Welcome to the Denver Business Journal's Tech Watch, our roundup of the weekend's tech news from around the nation, featuring reports on Apple, Facebook, Google, Amazon.com, Hewlett-Packard, Twitter, Samsung, Verizon Wireless, Research in Motion and more. Verizon Wireless cancels plan for $2 fee Most small businesses plan to buy tablets, mainly iPads Investment banks vie for Facebook IPO Samsung is top handset manufacturer in new study Facebook Timeline coming to iPad in January Apple, Google gain as BlackBerry loses market share Could Amazon, Twitter, Google go dark to protest anti-piracy law? Mark Hurd sex harassment letter published Silicon Valley's 2011 IPOs a mixed bag Best-read Silicon Valley business stories of 2011 Kindle Fire ad impressions jumped 261 percent on Christmas

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