| index data can be bulky - pure text documents will require almost same file space for index data |
| index process can be run as a daemon process running nightly |
| document + index set can be registered with central wais registry making information available to Internet community |
| docroot of a WWW server can be indexed or partially indexed. |
| disadvantage of freeWAIS over Harvest for example is that need access to the directory of Unix files to make index data. Although remote documents/index data can be accessed, you cannot index someone elseÕs WWW server with freeWAIS, unlike Harvest |