In SharePoint Server 2010, you can tag any link from any site, whether
it is hosted in SharePoint or not. To be able to tag external sites,
you need to open the tagging dialog by using the Tags & Notes
button on the Browse ribbon. SharePoint opens the tagging dialog in
page tagging mode, and it provides a link that says “Right click or
drag and drop this link to your browser’s favorites or bookmarks
toolbar to tag external sites,” as shown in Figure 1.
Follow the instructions in the dialog to add the sites to your
browser’s favorites, and then you are ready to tag external sites.
When you want to tag an
external site’s page with a tag, browse to that page, open your
browser’s favorites, and click on the link you added. SharePoint
directs you to the same tagging dialog you saw earlier in this chapter
that allows you to tag the page or site. You also can view or add notes
to it, as described in the following section.