Websites that have well-designed, effective interaction functions can provide valuable services to visitors that will bring them back again and again.

Good search and navigation functions guarantee that the visitor will find what they are looking for, instead of abandoning their visit in frustration.

A forum will let visitors discuss their interests, and at the same time tell you what members are thinking more quickly and accurately than a survey can.

By letting visitors control how you advertise to them, you can guarantee that your advertising will be interesting to, and wanted by, them.

If you have a website that has problems with interaction functions, you may need the services of a software engineer to develop a good interactive experience for your visitors.