Sharing the joint use of a resource or space. In its narrow sense, it refers to joint or alternating use of an inherently finite good, such as a common pasture or a shared residence. It is also the process of dividing and distributing. Apart from obvious instances, which we can observe in human activity, we can also find many examples of this happening in nature. When an organism takes in nutrition or oxygen for instance, its internal organs are designed to divide and distribute the energy taken in, to supply parts of its body that need it. Flowers divide and distribute their seeds. In a broader sense, it can also include free granting of use rights to a good that can be treated as a nonrival good, such as information. Still more loosely, “sharing” can actually mean giving something as an outright gift: for example, to “share” one's food really means to give some of it as a gift.

Sharing disjoints the connection between usage and ownership of a product. Products are often sold because a buyer intends to use the product or the buyer intends to sell it to someone who will use it, thus sharing a product may reduce the product's demand by reducing the number of people who intend to acquire it to use it. Though sharing is touted as an economical and environmental aid to the public (carpooling, shared apartments, etc.), some businesses perceive it as a threat because of its assumed effect on their profitability. This has resulted in protection laws (such as copyright provisions denying owners the right to perform or display the work publicly) to curb sharing. The effect on profitability is difficult if not impossible to assess because it relies on making sweeping assumptions about public behavior including individual decision making differences, buyers only convinced to buy after using a friend's product, and the effect on the sales of products given away.

In the English language, black sheep is an idiom used to describe an odd or disreputable member of a group, especially within a family. The term has typically been given negative implications, implying waywardness. It derived from the atypical and unwanted presence of other black individuals in flocks of white sheep.

In psychology, the black sheep effect refers to the tendency of group members to judge likeable ingroup members more positively and deviant ingroup member more negatively than comparable outgroup members.

The term originated from the occasional black sheep which are born into a flock of white sheep due to a genetic process of recessive traits. Black wool was considered commercially undesirable because it could not be dyed. In 18th and 19th century England, the black color of the sheep was seen as the mark of the devil. In modern usage, the expression has lost some of its negative connotations, though the term is usually given to the member of a group who has certain characteristics or lack thereof deemed undesirable by that group.

Gwyneth Kate Paltrow ( /ˈɡwɪnɨθ ˈpæltroʊ/; born September 27, 1972) is an American actress and singer. She made her acting debut on stage in 1990 and started appearing in films in 1991. After appearing in several films throughout the decade, Paltrow gained early notice for her work in films such as Seven (1995) and Emma (1996) (in which she played the title role). Following the films Sliding Doors (1998) and A Perfect Murder (1998), Paltrow garnered worldwide recognition through her performance in Shakespeare in Love (1998), for which she won an Academy Award for Best Actress, a Golden Globe Award and two Screen Actors Guild Awards, for Outstanding Lead Actress and as a member of the Outstanding Cast. She also won an Emmy Award for Outstanding Guest Actress in a Comedy Series in 2011 for her role as Holly Holliday on the Fox hit TV show Glee in the episode "The Substitute".

Paltrow has portrayed supporting as well as lead roles in films such as The Talented Mr. Ripley (1999), Shallow Hal (2001), and Proof (2005), for which she earned a Golden Globe nomination as Best Actress in Motion Picture Drama. Since 2008, she has portrayed Pepper Potts in the Marvel Cinematic Universe, starring in Iron Man and its sequel, Iron Man 2 (2010), and also appearing in The Avengers (2012). Paltrow has been the face of Estée Lauder's Pleasures perfume since 2005. She is married to Chris Martin, the lead vocalist of Coldplay. They have two children together, Apple and Moses. She is also the face of American fashion brand Coach, owner of the lifestyle company Goop.com and author of the cookbook My Father's Daughter: Delicious, Easy Recipes Celebrating Family & Togetherness.