The only drawback is that you cannot be listed as a group or organization in the directory. To do that you must get a business line or call-forwarding, but such service is usually much more expensive. Sometimes you get charged by the minute even for local calls. If you are con-fused about this, ask different activists involved with groups. Get multiple opinions and ask your-selves which service would be best for your group.
Lets face it.
The information age is upon us. It will be much easier to use the technology than to try and organize to abolish it. Of course, it's up to you and your group what you want to do. You can use a personal account or establish a separate account for your group. These allow you to send one message to multiple users or receive any information sent to the list.