Sister Cities International (SCI) is a nonprofit citizen diplomacy network that creates and strengthens partnerships between communities in the United States and those in other countries, particularly through the establishment of "sister cities"—broad, long-term agreements formally recognized by civic leaders. Its mission is to "build global cooperation at the municipal level, promote cultural understanding and stimulate economic development". A total of 1,800 cities, states, and counties are partnered in 138 countries worldwide. More information...
According to PR-model, sister-cities.org is ranked 8,811th in multilingual Wikipedia, in particular this website is ranked 9,972nd in English Wikipedia.
The website is placed before comipress.com and after housebeautiful.com in the BestRef global ranking of the most important sources of Wikipedia.