Collaborative refers abstractly to processes wherein people work together to expand the news content of a web site.
Please submit sites which consist primarily of headline links to news articles at websites external to themselves.
"Collaborative" means a HUMAN provided each link, not a search engine or a RSS newsfeed or a well-programmed computer.
Second, this category is for FREE news directories. Site requiring a fee for access would be a business and those sites should probably be in a business category or perhaps News/Media/Services/ or one of its subcategories.
Thirdly, the directories themselves need to deal primarily with NEWS. Sites covering a broader topic base should consider probably be offered at Computers/Internet/Searching/Directories/ or one of its subcategories.
Submit ONLY web sites that are open for anyone to participate in helping to build the news link listing.