Pairings can be used for all kinds of advanced cryptographic schemes such as Encryption (Identity-based, Attribute-based, Predicate-based, etc.), Signatures, Zero-Knowledge Proofs, etc. It is in no particular order.
Provides multiple types of Elliptic Curve groups with appropriate pairings on top of them. Code repository resides here.
Thesis: On the Implementation of Pairing-Based Cryptography by Ben Lynn (2007)