One of the first places to look is in the current Internet magazines. The accepted leader is called 'Internet'. The answer depends on what you are trying to achieve.
Most countries have a version of yellow pages.
Any user names and passwords required are installed and correct. A name that is heard in many computer circles - he is probably the closest competitor to Microsoft and Bill Gates. The memory management within the computer will occasionally go awry. This is down to the way different software accesses the computer system. When such an error occurs the safest option is to turn the computer off and back on again.