[TYPO3] How to add a page tag

[LinTong]

hallo everybody

I would like to add a tag or propety to every page and the system can
give a linklist according to the tag.

for example

page1 have tag1, tag2
page2 have tag2

when i click the link of tag2, system can show me  the links of page1 & page2.
when tag1, only the link of page1.

Is there any extension which can implement this function?

Thanks very much.

-- 
Best Regards
LinTong(Pierre)