MMORPG.com Lord of the Rings Online Correspondent Allie Springett writes this look at the kinship feature in Turbine's Lord of the Rings Online.
What is a kinship?
Kinships are essentially a group of players, possibly with a common interest, that join together to achieve mutual benefit. These will be discussed in more detail below. Kinships can range in number of players from a minimum of six to one thousand five hundred, depending on its lifespan rank. The lifespan rank is simply a measure of how long the kinship has been in existence, with different bonuses available dependant on rank. For example, a rank four kinship has a chat channel for officers only and a rank seven kinship as the option to purchase a kinship house.
Take a Look at Kinships.