Just enter one word and hope. After hearing this, it might seem that you always want to use a pick list. After all, they are easier to search and navigate than the large search engines. You don't find the large amount of junk you can find in the engines, and it's a much faster way to get what you want. The disadvantages focus around the fact that a person is involved in the process, and it's not automated like the search engines.
Entries can take months to show up on the directory structure.
If you can't guess the term that the organizer picked for the page, you'll have a hard time finding it. Pages that are about multiple topics frequently only get placed in one area, ignoring the other topics of the page. For any indepth searching or non-mainstream topics, you'll have to use a search engine instead of a pick list. Conclusion Pick lists are a great place to start your Internet search, if you can find a matching topic. In those cases, it's a dream come true.