Senzari is a music streaming service that competes with Pandora. Pandora’s biggest complaints is that their music catalog is too small and it is not available outside of the U.S. Senzari is a Miami-based music streaming service that recently launched in the U.S. and Brazil with plans to expand into Latin America, Spain, and Australia.

Some of the technology companies that have filed to have an IPO this year includes Zillow.com, Zynga, Groupon, and LivingSocial. Given Pandora and LinkedIn’s success on their recent IPO, it provided positivity and excitement for the aforementioned companies to go public. However today’s economy gives the stock market an entirely different perspective.

Pandora Media Inc. (NYSE:P) has hit 100 million registered users. About one-third of their users access Pandora on a monthly basis. Pandora has a 3.6% market share of all radio listeners in the U.S. Pandora.com plays music that is similar to song suggestions that a user enters. As the user enters positive or negative feedback for songs, Pandora selects songs to play in the future.

Internet radio company Pandora Media Inc (NYSE:P) has gone public today. Pandora priced their shares at $16. Pandora opened at $20 and jumped to $26. This is an increase of over 60%.

Pandora is a music streaming service that has filed a new version of an S-1 with the SEC. The price range is now placed at $10 to $12 per share. Pandora now has a valuation of $1.9 billion. Pandora was originally priced at $7 to $9 per share. Pandora plans on being traded on The New York Stock Exchange under the symbol “P.”

Pandora has reported their Q1 results in an SEC filing. Pandora has reported an increase in revenues, users, and usage. However their losses are up too. Below are some of the details in an SEC filing for Q1:

Music streaming service Pandora has collected 10 billion thumbs. Pandora users in indicate which songs they like by either hitting thumbs up or thumbs down. Pandora uses this information to control what songs to play for their users. By hitting thumbs up, Pandora will play similar songs for you. And by hitting thumbs down, Pandora will play less of that kind of music for you. This is a huge milestone for the music company.

Veracode is an independent security firm that has determined that that the Android application of Pandora appears to be sending out the birth date, location, Android ID, GPS location and gender of its users to ad companies. A Federal Grand Jury is also involved in the investigation of apps that send out personal information to ad companies including Pandora. [Veracode via Engadget]