Some people just think like you some others don't. There is not much to do about it.

Being self-employed obliges me to be much closer to my customers. I notice now the difference between people I'm involved with. I find that it's much easier for me to do business with people who use the same tools than me. So here are the tools :

• A lot of Emails
  
• Instant Messaging
• Twitter
• A good website or blog that you keep up to date
  
• Facebook, which takes more an more 'professional space'
  

I find it more difficult to stay in touch and make good agreements with the people who don't use those tools.

Note that sometimes I have requests to adopt tools. So that's why after one year of OpenOffice, I had to go back to MS Office because the majority still uses it and want to continue to do so.