title: Assign unique permissions without breaking the inheritance in sharepoint 2007
body: <p>I have a discussion list and need to provide contribute access only to this list for all users with read access(i.e visitors). Basically, all visitors should be able to submit their comments in discussion list, but at same time no contribute access on any other lists of the child site. How can I do this without breaking the permissions inheritance from top level site??</p>
  
  <p>Any workaround/ideas are appreciated..</p>