Disscussions on website

Adding Discussion Threads to Documents in a Web Site based on SharePoint Team Services

The Web document discussion feature in Microsoft SharePoint™ Team Services, can be used to add a discussion thread to a document on your SharePoint team Web site. You can attach comments to a Web page or to any document that can be opened with a browser (such as .htm, .xls, .doc, and .ppt files). Other team members or Web site visitors can place comments in the document or have them appear in the discussion pane at the bottom of the Web browser window. Anyone reviewing a document can view and reply to comments. The document owner can then review discussions and incorporate changes based on the discussion.

To add a Web document discussion to a document, open a SharePoint team Web site in your browser and do the following:

1.From the home page, open a document library such as Shared Documents.
2.Click the Edit icon to the right of the document you want to start a discussion about.
3.Click the Discuss icon.
4.Select the Insert Discussion button below the discussion pane at the bottom of the browser window. 
5.In Enter Discussion Text, type your comment subject and the comment and click OK.

Tip: If you see "SharePoint Error: Web document discussions are not available on this server", in the discussion pane, contact your SharePoint team Web site administrator to have Web Discussions turned On.
(In case you need it as well, turn it on by clicking View> Explorer Bar> Discuss.)