If you want the internet settings for Glo on your phone, you can get it sent directly to your phone. Read on how to get the automatic settings for the Glo network here.
The following procedure assumes you already know where to put the settings on your phone. If you don't, you can still follow the full procedure as stated in this post, by only switching values.
Put the following setting to access Glo Ghana internet:
APN : glowap
USERNAME : glo
PASSWORD : glo
PROTOCOL : HTTP
HOMEPAGE : http://starphy.blogspot.com
PROXY ADDRESS : 010.161.085.004
PROXY PORT : 8799
This settings once entered enables you to browse the internet.
Remember that the password is in lower case.
For automatic settings (short codes) for Airtel (Zain) or MTN, this post
For manual settings for Airtel Ghana, read here
Read here for MTN Ghana manual internet settings.
You can get Vodafone Ghana manual internet settings in this post