Cheapest way of sending and recieving messages to usa?

Question

hi i have a friend in the usa she is on an american network and i am on vodafone uk what is the cheapest way of sending and receiving messages should i change networks? thank you in advance

Answer 1

text messaging or email.

email is free wherever and location doesnt matter for text messages if they have coverage  

Answer 2

does she not have the internet? email her or talk on msn.

...or get an international sim card.