Facebook's "Share" feature allows users to re-post their friend's quotes or links to their own profile. When you do this, the original poster's name will appear on the re-post as a link to their profile. Facebook notifies you when a friend re-posts one of your updates or links. However, if you want to search for shared links from weeks or months ago, the easiest way is to do a Facebook search for your name.
Log into your Facebook account at facebook.com.
Find the "Search" box at the top of the screen and type a key phrase from the post you want to find. Press the magnifying glass symbol to conduct the search.
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Click "Posts by Friends" to the left side of the search results to see which of your friends have re-posted your update or link. For a wider search, try clicking "Posts by everyone." The search results will display a list of people who have re-posted your update or link.