1. Go to the main page of the club あなた want to link to, e.g.
link 2. Highlight the URL, right click on it and select copy.
3. Go to the club あなた want to add the link to. Then go to the リンク section and click "add link".
4. Paste the URL in the URL box. Give it a name, 説明 and some keywords, then click Submit.