I had two when I was school age and beyond. Both Bay City Rollers fans. One was from California, she came over and stayed with us for a month. Really lovely girl. We wrote for about 5 years and then tailed off.
The other was a girl from Bourne in Lincs. I never met her but we also wrote to eachother for about 5 years.
I have an old school friend and we have written to eachother for the last 35 years. We very rarely see eachother but write about 4 times a year. Always letters, never e mails even though she's lived in France for the last 10 years.