Public lab wikis are used for collecting information, documentation and instructions on projects. And nature of wikis are that they can be edited by any logged in user. Just editing a wiki is not enough. There are times that other users would like to make comment on wikis. And there are occasions that others users would like to make suggestions on wikis. Sometimes they may need to comment or make suggestions for a part (for a paragraph) of the wiki. Currently wikis does not have any mechanism to make comments or suggestions. So implementing the ability of commenting and making suggestions on wiki pages would make them more interactive and discussion-oriented. And implementing these per paragraph basis will make wikis more alive.