The web giant Yahoo announced today a new initiative that will expand its presence in the mobile world. The new service, Yahoo onePlace, is basically a mobile content management solution, that aims to help users to organize, select and gather the information on their cell phones. The product resembles a lot to MyYahoo, but with a mobile twist. How does Yahoo onePlace works?

While browsing the Web from their PC or mobile place, the users will practically bookmark their points of interest, which could be every piece of information from news feeds, web sites, videos, images to emails and search queries.

Once in the information is brought in Yahoo! onePlace, everything will be kept automatically updated (with the latest game score, stock price, etc.) and it can be organized or placed into customized “collections” that consumers create. . If users link their desktop services and favorite sites like Facebook, YouTube, Google Reader, Delicious to onePlace those services and content sources will update automatically on onePlace on your mobile device.

“Yahoo onePlace is where users will be able to find what matters to them the most, no matter where their interests, passions and information come from. Yahoo! onePlace will provide mobile users with a rich and dynamic content experience,” said Marco Boerries, executive vice president, Connected Life, Yahoo. The information can be transferred from PC to cell phone. For example, if a user is planning a holiday to Paris in June, he could create a “Paris” collection, and begin linking it to any information he thinks will be useful to him on his trip: weather conditions, city guides, restaurant reviews, hotel reservations, walking maps, songs of Edith Piaf, English-French dictionaries, winery recommendations, etc. Yahoo onePlace will give consumers a single location to consume all of their information contextually, keeping it updated (so they know, for example, if their flight times have changed) and instantly accessible whenever and however they want it. The product will be configured to allow consumers to do the same for literally hundreds of different topics.

OnePlace also includes a mobile RSS reader, which enables users to read and subscribe to blog feeds. Yahoo also plans to offer APIs for onePlace.

Yahoo plans to launch onePlace in Q2 2008. The service will be available across hundreds of devices and mobile browsers, the company added.

Last month at the Barcelona Mobile World Conference Yahoo unveiled oneConnect, a “socially connected address book” combining e-mail, SMS, instant messaging and social networking and at the same time, an open service that allows other companies to join.

The service is part of the Yahoo Go 3.0 mobile platform. OneConnect is actually an all-in-one service, designed to keep users in touch with the latest changes of their social networking contacts, by mixing social messaging and social applications for the users’ best convenience.

The service will support sites such as Facebook, MySpace, LinkedIn, Hi5 and others and will be compatible with instant messaging services like Yahoo Messenger, Google Talk, AOL Instant Messenger and MSN Messenger.

The mobile content is the latest battleground for the Web giants like Microsoft, Google or Yahoo. For example Google has already a strong portfolio of mobile versions of its most popular versions and is working in an alliance with mobile companies to develop Android platform. Android is based is based on the Linux operating system and Google hopes to increase the quality of Web browsing and enhancing the audio and video experience for mobile phones.

Also, Microsoft and Nokia announced today they will team up to bring Silverlight’s rich, interactive applications to Nokia’s S60 software platform, as well as to the Series 40 devices and Nokia Internet tablets.