What you need to know - 01/28/11

Demand Media and LinkedIn IPO filings; the Egyptian government turns off all Internet access

Since January 1st, Amazon says, the site has sold 115 Kindles for every 100 paperback books sold. This is the first time that a digital book has outsold physical paperbacks.

SEO platform BrightEdge is expanding globally for a new international reach.

Many are hopeful that Demand’s IPO heralds a tech boom that will reinvigorate the market and inspire other companies to go public.  But with all of the red flags peppering Demand’s S-1, does the company’s IPO signal a boom or a bubble?

As part of preparations to subdue massive demonstrations planned for Friday, the Egyptian government pulled the plug on virtually all Internet communications at a little after midnight.

Facebook is introducing a new marketing tool called Sponsored Stories, a product that allows marketers to sponsor actions that favor their brand, like user check-ins and likes, brand page posts and actions in business-specific applications.

Kony Solutions, provider of a mobile platform that makes it easy for companies to implement media-rich apps for phones, raised $19.1 million in Series A financing from New York-based Insight Venture Partners.

LinkedIn filed its S-1 form Thursday in preparation for its public offering. The company has not yet disclosed how many shares it plans to offer or what the starting price will be, but its financial health looks solid.

On Deck Capital, a service that provides financing insight and tools for small businesses, has raised a $15 million Series C round led by SAP Ventures.

Social shopping community Storenvy, secured $1.5 million financing led by Spark Capital and First Round Capital with participation from KPCB, Charles River Ventures and a group of key angels.

Today's featured entrepreneur is Brian Wong, founder and CEO of Kiip.

Zferral acquired simple partnership software Cloudomatic(flow) and the assets of the entire Cloudomatic Properties.