Workday, is all set to go public today, at a valuation of $4.5 billion. It has raised $637 million, by selling close to 22.8 million shares for $28 each.

Oracle has acquired yet another enterprise cloud startup, SelectMinds, a provider of cloud-based employee recruitment and HR services.

Workday, a cloud based enterprise software company which competes with Oracle, SAP, Salesforce.com and others, has filed for an IPO. It plans to raise $400 million.

IBM has acquired Kenexa, a social human resources, talent acquisition and management software company, for $1.3 billion.

Salesforce reported its earnings for Q2 FY13, with revenues growing nearly 34% to $732 million, but it still ended up with a net loss of $9.8 million.

Toyota Motor Corp. and and San Francisco-based Salesforce.com is setting up a social networking service called “Toyota Friend”, similar to Facebook and Twitter. The new service allow users to exchange real time updates with Toyota drivers, connect with local dealers and remotely obtain information about their hybrid vehicles, such as battery usage. It is expected to debut in Japan before it rolls out globally in 2012.