The difference between a stranger sending you a message that you might be interested in at a very low volume level, no repetition, just sending it to very few people, and that being done as spam - those things get close enough that you want to be careful never to filter out something that's legitimate.

The need to communicate effectively with your customers will come up again and again.

The early personal computers were not very powerful so the idea of feeding their program into a small amount of memory requires immense skill.

Steve Jobs' ability to focus in on a few things that count, get people who get user interface right, and market things as revolutionary are amazing things.

Microsoft has had many, many successful products. I'm committed to one company. This is the industry I've decided to work in.

Does the e-mail say it's about 'enlargement' - that might be spam.

Computers and games don't waste time - people do.