1.   Users can share Windows applications, requiring that only one personal computer holds the application and files.

2.   However, the lack of a similar system in prison meant that jailed drug users were still sharing illicit injecting equipment.

3.   America Online, for instance, offers computer bulletin boards where users can share experiences in treatment and side effects.

4.   And like their musical counterparts, Apple users share an alternative culture.

5.   But other software, like Gnutella, allows users to directly share files without any administrative intervention.

6.   CCS even sponsors monthly get-togethers, where users share a meal and some face-to-face conversation.

7.   Drug users often share needles because they are in short supply.

8.   If they wish, users can also share their lists with specific subscribers to the service or the world at large.

9.   IBM has also created an online area where ThinkPad users can share tips and experiences.