Microsoft adds ‘placeholder files’ and offline access to SkyDrive in Windows 8.1

Microsoft has detailed more features of its SkyDrive cloud storage app inside the upcoming Windows 8.1 operating system update, and a few of them are pretty awesome.

YouSendIt rebrands as Hightail to take on Dropbox, Box, Drive, & SkyDrive

When former AOL exec Brad Garlinghouse took over as CEO of YouSendIt a year ago, it was clear he had plans to shake up the company. Now he’s finally doing it.

Microsoft exec on the Valley’s bias against Azure: It’s ‘running out of excuses’

Microsoft’s Windows Azure is not the cool kid at the cloud party. But an Azure general manager told us it’s time for startups to stop making excuses and seriously look at Azure.

Microsoft’s Azure Mobile Services & Azure Web Sites hit general availability

Microsoft has opened up Azure Mobile Services and Azure Web Sites to any developer that wants to use them.

Forrester: Microsoft’s cloud deal with Oracle makes Azure a stronger AWS rival

Microsoft and Oracle, two enterprise titans, announced a major deal today to be more friendly when it comes to enterprise cloud services. The move could make Microsoft Azure a much stronger rival to Amazon Web Services.

CloudByte cooks up $4M for software-defined storage

Showing VCs are more than willing to throw money at buzzword-filled startups, software-defined storage startup CloudByte has raised $4 million in new funds.

SendGrid launches email marketing service that undercuts MailChimp & Constant Contact

Email infrastructure business SendGrid takes a dive into new waters with its own email marketing service, which will challenge Constant Contact and MailChimp.

Following 243 percent growth, cloud-backup startup Zetta.net grabs $8M

Enterprise cloud-backup provider Zetta.net has raised $8 million in new funding to help it bolster its backup, disaster recovery, and archiving services.

CenturyLink acquires hot platform-as-a-service AppFog to beef up its cloud power

CenturyLink has acquired AppFog to add more firepower to its Savvis Cloud suite.

Apple’s iCloud service now has 300M users, will improve functionality of iWork

Apple’s iCloud service now has more than 300 million users, Apple CEO Tim Cook said on stage today at its WWDC conference.

IBM to acquire cloud infrastructure powerhouse SoftLayer

After numerous rumors that it was going to happen, IBM has agreed to acquire Dallas-based infrastructure-as-a-service provider SoftLayer.

Salesforce to buy cloud marketing biz ExactTarget for a massive $2.5B

Enterprise software behemoth Salesforce has agreed to buy digital marketing firm ExactTarget for a massive $2.5 billion. This will be Salesforce’s biggest acquisition ever.

Cloud call center biz Five9 hooks $34.5M from SAP, Adam Street, & others

Five9 has raised $34.5 million in new funding to help it take on legacy call center software makers that still own 95 percent of the market.

OpenStack-powered cloud startup Cloudscaling scores $10M from Trinity, Juniper, & Seagate

Elastic cloud infrastructure startup Cloudscaling has raised $10 million in its second round of funding so it can keep growing at a quick clip and innovating its cloud technology.

Performance management biz Adaptive Planning nets $45M from BVP & others

Leading corporate performance management (CPM) company Adaptive Planning has raised a massive $45 million in its fourth and final round of funding with a goal to further dominate the CPM space.

Hotel Ninjas launches its ‘Salesforce.com for the hospitality industry’ (exclusive)

Cofounder Avi Meir said he was inspired to start the company after realizing that most hotels still relied on “expensive, outdated, server-based technology.”

Google opens up AWS competitor Compute Engine to all, adds PHP to App Engine

Google cloud infrastructure service Compute Engine is now open to all developers who want to use it.

Expensify takes on Freshbooks with invoicing & billing features

Popular expense report startup Expensify has added the ability to invoice and bill clients from inside its cloud-based dashboard.

Database-as-a-service Cloudant nabs $12M from Devonshire, Rackspace, & more

Hot database-as-a-service startup Cloudant has raised $12 million in its second round of funding.

Heroku developers get push messaging abilities with new Urban Airship app

Smartphone notification startup Urban Airship has launched a new app in the add-on marketplace of platform-as-a-service provider Heroku, a move to give PaaS developers better access to push messaging solutions.