The most commong forum scripts are: phpbb, smf, and vbulletin forum script. Forum script can be consuming high server processing power and uses intensive mysql database connection. A typical vbulletin forum will have over 100 php files, and a simple forum site will uses up quit a lot of mysql connection at one time.
When searching for forum web hosting plan, do make sure that your web hosting plan can provide you the capacity that you require. Check the php version, mysql version, connection limit at the same time, and finally checked the server uptime and server speed test. You need to make sure that your hosting plan can deliver the required processing power.
Once you had identified the web hosting plan for your forum site. Go ahead an signup with them, and start setting up your forum site on your new hosting account.
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