Роюсь в хуках на маркетплэйсе. Есть очень интересные. Предлагаю сюда сваливать ссылки на них, пригодится:
This hook will let other users know that you are away for a specific reason. Made specifically for moderation purpose, can be used by any group to inform that you are away for a few days:
http://community.invisionpower.com/files/file/6560-member-away/
With this modification you can set icon for every or only selected forums:
http://community.invisionpower.com/files/file/2457-dp33-forum-icons/
With this application you can create a football tables:
http://community.invisionpower.com/files/file/6544-nb34-my-football/
Will show how much time each member spends logged into the site:
http://community.invisionpower.com/files/file/4324-total-time-spent-on-forums/