Articles explaining how to do various tasks on Google Sites. If you can't find what you need use the search on the top right or request one-shot support.
Google Sites FAQ first, then my how-tos below.
If none of these articles help you there are other resources that may:
Feel free to suggest a how-to from me to write: go to Google Sites How To Suggestions to do so.
If you can't find what you need then use the search below to search for help from Google and user of Google Sites (search results open in a new window or tab):