Mr. Casal said that because he works in an elementary school, he generally keeps in touch with parents more often than students.

WSJ: City Lays Out Digital Rules for Teachers

"I hate the idea, " says William Sanchez, who keeps in touch with his Californian colleagues 2000 miles away from his New York office via Yahoo Messenger.

BBC: Messaging in an instant

He left the club in 2002 and his time at Ibrox left a lasting impression on him and he admitted he still keeps in touch with events at the Glasgow club.

BBC: Advocaat puts Rangers love aside