Twitxr is a Web service that allows users to share pictures and status updates from their mobile phones. In fact, Twitxr was developed by FON, a company which sells WIFI router and with an aim to helps users get free access to over a million WiFi hotspots worldwide.

After you signing up with Twitxr, you can send your pictures to a variety of external services such as Twitter, Facebook, Flickr, and Picasa. All you need to do is to enter your own log-in credentials of these aforesaid services, then you can start sharing pictures either from your email client or your mobile phones; currently supports iPhone, Windows Mobile, Nokia and Motorola phones.

For email posting, just send an email message containing a photo, a title (location) and update text as body text to your private Twitxr e-mail address. Then, Twitxr will send out your pictures for you. Additionally, you can post text-only updates, picture-only updates or both by using Twitxr.

Google Buzz, the newest product that Google pushed into the social media space has really created a buzz recently. For the users of Google’s email service, i.e. GMail, they now can start using Buzz within GMail with a one-click button, and all the powerful features offered by Google Buzz are available in their profiles.

Once you log into GMail, you’ll notice that there is a tab under Inbox, and labeled as “Buzz”. From there, you can set up your Google Profile (with your GMail username as the custom Google Profile username) and start using it the first time by importing photos from your Picasa or Flickr accounts and share the photo albums to your Buzz account.

From a user perspective, Google Buzz is user friendly and easy to use. You can post updates on Google Buzz, insert URL link or photo, and clearly this is a lot like Twitter and Facebook. For each new update (Google called it Buzz), there are public and private settings so that you have the options to send the Buzz to everyone or a specific contact group. Meanwhile Google also want to make sure your followers will participate to your publicly available Buzz, and thus the comment and like, or un-like features are built underneath each of the Buzz. Notable mentions also go to the real-time feature of Buzz; once you send a Buzz, it will instantly show on your Google Profile.

Besides, it’s also important to note that Google Buzz is available via mobile phones in several ways: from Buzz.google.com, Buzz on Google Maps for mobile, Buzz Shortcut from Google.com and Voice Shortcut, which is available in the quick search widget on Android and in Google Mobile App on iPhone.

Meanwhile, there are questions on how should we use Google Buzz to a maximum level. Simply joining Google Buzz, create an account, and following few people as well as sending some Buzz clearly isn’t much different from using the most popular social sites such as Facebook or Twitter. But linking Buzz to millions of GMail users has successfully brought this newly launched social site to a greater height. To date, Buzz simply gained tens of millions of users, mostly thanks to GMail’s loyalty users as the integration of Buzz with Gmail is part of its appeal.

Yet, we tend to think that most of the existing Buzz users like Twitter. And Twitter is officially supported by Buzz, the same is true of Picasa, Flickr, Google Reader and many more to come (but not Facebook). Apparently, most Buzz users are using Google Buzz to import their tweets as a way to send latest updates to their followers. However, it also mean that people are still spending their time on Twitter and on the other hand, Google Buzz currently does not offer any feature that’s so great which well incentivize people to leave behind Twitter, not to mention Facebook and start it over again with a new social site. Ultimately, it takes time to build a totally new strong followers on a new social site.

Nevertheless, if Google Buzz can keep up the momentum and building its own user base day by day across the Web, it’s no doubt that everyone from small businesses to Fortune 500 companies will build their Google Profiles on Buzz as a brand while paying attention to the conversations happening on Buzz.

Think 50% friend-finder, 30% social city guide, 20% nightlife game. This is one of the slogans that location-based social network Foursquare when it first launched on the Web. Now, Foursquare has became a full-fledged social application that allows you to update your current status as well as finding out what your friends are doing nearby through variety of smartphone applications such as iPhone, Blackberry, Palm and even the Android app.

To encourage users to connect to their friends based on location, Foursquare awards points and unlocked badges. For instance, a user can unlock the “Newbie” badge for being the first time to check in by using Foursquare, and after you checking in ten (10) different venues, you’ll earn yourself a “Adventurer” badge. Want more? Try to check in the same place three times in a week, you’re a “Local,” and if you make thirty (30) checkins in a month, then you’re a “Super User.” In addition, you can track your achievements in your own dashboard in order to find out the number of your Nights Out” and any mayorship you entitled to by being the first to visit a new place.

At its core, Foursquare does the two most important things in location-based social network: it displays your personal lifestream, which essentially your location updates and helps you to find new ways to explore the city. Meanwhile, it also helps to connect to your friends in a better way via geolocation in a number of ways like send a “Shout” to your friends, add any tip to a city where you and your friends enjoy together and create a “to-do list” among the group of your buddies.

Software Tribes is a newly launched social network that allows software engineers to collaborate with each other through a Twitter-like interface by posting an update, i.e. “What’s up?”

Currently in public beta, which mean software professionals can register an account with a professional purpose. Since Software Tribes is dubbed as a micro-blogging network for software professionals, therefore provided a place that enable this niche group of software professionals to meetup with each other, find projects, share knowledge and also join the groups in their area of interests or specialties. In the meantime, there are many groups be created, but the top group TIBCO, created for the discussion of TIBCO Software Inc., a company that specialize in helping companies achieve service-oriented architecture (SOA) and business process management (BPM) success apparently has only less than 20 members.

On the public timeline of Software Tribes, there aren’t many users engage in the threaded conversations as the number of active users on Software Tribes is still relatively small. For the time being, most of the users are based in India as the creator is from Hyderabad, India as well. However, it would be interested to come back to this new micro blogging service and check the growth rate of its user base when it slowly expand to other countries.

The other day I came across a new Argentina-based social network called Weegoh. It is co-founded by Ariel Barmat and Christian Hentschel, and useful for users who are passionate of sharing experiences around places.

Currently, Weegoh has a small community of users mainly from Argentina. To enable users to share their location-based experiences, Weegoh allowed users to create their own profiles, add friends or follow other people and share their activities through a Twitter-like status update, i.e. What are you doing here? For every activity you posted to Weegoh, a specific place name will be incorporated so that Weegoh makes it easy for you to connect with other people in the same area where you posted your activity.

For instance, place like Gascón 201-299, Buenos Aires, Argentina, there are 12 people (Weegoh users) there. If the Weegoh system can’t aggregate any user in the location, it will show a succinct list of Twitter users with the symbol @in the area. Also, Weegoh allows users to connect with other people in the same location and places in a simple manner through the availability of people nearby, and places nearby; two of the useful features to ensure that you don’t feel alone in the location where you are at the moment.

At its core, I think Weegoh not only want to display your personal lifestream, with all the updates you posted on your profile, it also want to integrate it with some of the popular Web services such as Facebook, Twitter and Fire Eagle. Nevertheless, as a new social network which only appeared in this year, it will be interesting to see how Weegoh grow to a huge audience in the future.

Think LinkedIn is the only place for business networking? Here is a new entrant called Skillscribe that offers an alternative way to “Mass Market Yourself.”

Skillscribe, currently in open beta aim to become a destination for business professionals to establish a presence on the Web. You can create your very own Skillscribe profile for all of your professional contacts such as experience, education, with a separate page for your photos and your resume. Its social networking elements, though limited, but there is a people directory where you can some people whom you want to get connected with. However, the adding of tag cloud would be very useful in which a user can easily find other similar people and thus, make the networking time more efficient.

At first glance, most business professionals that joined Skillscribe are from Nigeria, India and Pakistan. Nonetheless, to make an entire business social network successful, Skillscribe need to have a huge number of users.