New York - Digital music service eMusic on Tuesday announced the availability of its service in Canada, offering a catalog of 3.5 million songs from 33,000 labels in the unprotected MP3 format. The company, which recently passed 200 million downloads sold, offers songs from artists on Canadian labels including Nettwerk, Arts & Crafts, Justin Time, Secret City Records, Mint Records and Paper Bag.

Los Angeles - News Corp.'s (NYSE: NWS) MySpace social network on Tuesday announced the launch of MySpace Karaoke, an online karaoke service powered by kSolo, which Fox Interactive Media acquired in April 2006. The service allows users with a microphone to view lyrics in real-time while singing along to licensed tracks, with the ability to record and share their performances with friends.

San Antonio - Clear Channel Radio (NYSE: CCU) on Tuesday announced the launch of erockster, a site that offers a collection of on-air, online and on-demand music content, along with community features. The site, produced by Eric Szmanda -- the actor who plays Greg Sanders on "CSI" -- launched last weekend with a stream of songs from artists that have played the Coachella music festival in California. As of May 2, erockster's content will also begin streaming from Los Angeles (KYSR-FM), Washington D.C. (WWDC-FM) and Philadelphia (WRFF-FM), and a two-hour syndicated show will also be offered on FM stations.

San Jose, Calif. - CellSpin on Tuesday introduced its mobile application that allows users to post audio, video, photos and text on social media sites including Facebook, MySpace, YouTube, Blogger, Picasa, Flickr and even live eBay auctions. The San Jose, Calif.-based company, which debuted its technology at DEMO Conference in January, said CellSpin currently works on over 300 mobile phone models, and supports Symbian, Windows Mobile, and BlackBerry operating systems.

New York - The BBC announced on Tuesday that it has made BBC America programming available for purchase for the first time from Apple's iTunes Store. The offering will include episodes of "Little Britain," "Torchwood" and "Robin Hood," with new episodes of the latter to debut on iTunes 24 hours after their network premieres.

New York - Sirius Satellite Radio (NASD: SIRI) said on Tuesday it has signed a deal with Logitech, to make over 80 Sirius channels available for streaming on the company's Squeezebox line of network music players. The offering includes music channels plus programs featuring Howard Stern, Martha Stewart and NFL Radio.

Berkeley, Calif. - MOG, a music discovery service with a desktop music player, has raised $2.8 million in new financing, from Universal Music Investments, Sony BMG Music Investments and The Angels Forum 74, VentureBeat reported.

Basking Ridge, N.J. - Verizon Wireless (NYSE: VZ) and international mobile network Vodafone (NYSE: VOD) announced on Tuesday that they will team to offer what they say is the "first ever live global mobile simulcast" tomorrow, when they provide live streaming of Madonna's concert at the Roseland Ballroom in New York City.

New York - Divisions of three of the four major record labels on Monday filed copyright infringement lawsuits against Project Playlist, a site that lets users create playlists from streaming songs served from all over the Internet, Reuters reported. For its part, Project Playlist maintains that it does not host any music files, but instead merely links to files on many third-party sites, including many on record label websites.

Boston - Paid Inc., a provider of websites and fan club services for celebrities and organizations, announced on Tuesday that it has signed a new $2.5 million revolving credit line with Lewis Asset Management.

Toronto - Canadian telecommunications firm Rogers (NYSE: RCI) announced on Tuesday that it has partnered with Apple (NASD: AAPL) to launch the iPhone in Canada this year, but declined to provide details on pricing or a release date for the device.

Los Angeles - Serious Business, a developer of social media applications such as the "Friends for Sale" game on Facebook, has raised $4 million in a first round of financing from Lightspeed Venture Partners, the Inside Facebook blog reported.

New York - Video rental giant Blockbuster (NYSE: BBI) is in negotiations toward taking a stake in the new pay-TV movie channel joint venture announced by Viacom (NYSE: VIA) and several movie studios last week, people familiar with the situation told The Wall Street Journal. Under the prospective deal, Blockbuster -- which used to be owned by Viacom -- would invest in the joint venture and in return get digital rights to the new channel's programming.

Washington - With their merger possibly on the brink of completion, XM Satellite Radio (NASD: XMSR) and Sirius Satellite Radio (NASD: SIRI) both announced on Tuesday that they would both postpone their annual meetings. The two companies continue to await a decision on the deal by the Federal Communications Commission (FCC).

Novato, Calif. - Sonic Solutions (NASD: SNIC), a provider of digital media software, announced on Tuesday that it has acquired the assets of Simple Star, the developer of PhotoShow, an application that lets users create multimedia files from photos and videos.

Atlanta - Cox Enterprises, the owner of a cable TV and broadband provider, newspapers, television and radio stations, announced on Tuesday that its Cox TMI unit will acquire Adify, a provider of vertical online advertising. While financial terms of the deal were not disclosed, PaidContent pegged the price tag at around $300 million, and reports that Adify saw revenues of $7 million last year and is expected to pull in $35 million in 2008.

Twitter, the micro-blogging platform, has been in the news quite a bit lately (in particular for VC funding and rescuing a US blogger). This has helped drive US Internet visits up further to the increasingly popular service. Year on year, Internet visits to Twitter.com are up 8 fold. In the past three months, visits have more than doubled and traffic continues to climb, up 60% in the past month.

Sunnyvale, Calif. - InvenSense, a developer of motion sensing units for mobile consumer applications, said on Monday that it has raised $19 million in its third round of funding, led by new investor Sierra Ventures.