Skype:

Website:  Skype.com

Microsoft Messenger is now part of Skype.
MS Messenger discontinued as it merges into Skype's interface.
Messenger is Out, Skype is In.

Effective: April 28th, 2013

Call phones
Free unlimited worldwide calling is a great way to keep in touch with people anywhere. Say 'hello' to anyone with a landline in over 40 countries or call mobile phones in 7 countries, including the US, Canada and Hong Kong. Call them all and talk as long as you want.

Call Landlines:
Calls to landlines in these countries: Argentina, Australia, Austria, Belgium, Chile, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Israel, Italy, Japan, South Korea, Luxembourg, Malaysia, Netherlands, New Zealand, Norway, Poland, Portugal, Russia (Moscow and St. Petersburg only), Slovakia, Spain, Sweden, Switzerland, Taiwan, United Kingdom and Venezuela.

Call Landlines and Mobile Phones:
Calls to landlines and mobiles in these countries: Canada, China, Guam, Hong Kong S.A.R China, Puerto Rico, Singapore, Thailand and United States.

Make group video calls:
Get together with up to 10 people with group video calling. That means everyone can catch up at once.

Share your screen:
Group screen sharing makes it easy to share pictures and videos with everyone at the same time.

Because it rhymes when you say: "I Like Skype!"             

Adjative when preforming an action or process.
A Noun when referring to an application or software.
Can be an Interjunction: "Skype; that hurt." or "What the 'skype' was that?"
Grammer Usage:I use Skype. Give me a call. My number is...