What you need to know – 03/23/11

Brilig, a new kind of advertising data marketplace that enables marketers to preview and project the reach and lift of data into a campaign, closed $1.8 million in financing. Participating along with existing angel investors is Vincent D’Agostino, co-founder and former President of Webloyalty.

DotCloud, a second-generation PaaS company that helps developers deploy their apps, closed a $10 million Series A round led by Benchmark Capital and Trinity Ventures.

Facebook is taking the location check-in one logical step forward by giving users the ability to check into events.

Mozilla Firefox 4 has landed, after months of delays and repeated beta backups.

Health care and technology industry hybrid HealthTap raised $2.35 million in a Convertible Note Seed financing led by Mohr Davidow Ventures.

Inkling raised a significant round of funding from McGraw-Hill and Pearson, two of the largest educational publishers in the world.

Just ahead of its imminent IPO, LinkedIn CEO Jeff Weiner announced that LinkedIn now has 100 million members

Motista, an on-demand and Web-based consumer intelligence application for marketers,  raised $4.5 million in Series A financing from El Dorado Ventures.

RIM just announced this week that its new tablet computer and the latest iPad competitor, the PlayBook, will ship on April 19 and will start at $499 for the baseline model.

Digital advertising company SocialVibe secured a $20 million round of equity financing led by Norwest Venture Partners.