I haven't come across many, but there are a few alternatives for MS Access on Linux.

1. Open Office Base
2. Kexi
3. Glom

Those are the free and open source ones.  I did come ascross another quality product, but this one you have to pay for: Kirix Strata.  It does come with some bells and whistles though.

There is a new book out called The Open Source Alternative: Understanding Risks and Leveraging Opportunities.

Its target audience is managers and other business types and aims to help them understand the benefits and costs of open source.

Here is a list of 80 of the Best Linux Security Applications.

There are loads of games for Linux.  Here are the Top 100 Free Linux Games.  The nice thing about gaming on Linux is that when the boss comes up behind you, you can quickly switch to a new virtual workspace :P

Don't forget to check out the Linux Games Database for more games.

This is an awesome list of What to say to your children when they can no longer use Windows but Linux on the PC.  Not that I have kids yet, but this list could also apply to other family members or friends.