This report marks the start of T2RL's coverage of the market for revenue management and dynamic pricing of ancillary products. This market is beginning to emerge as more airlines see ancillary revenue increasing in importance. It is now possible to justify the investment required to optimise the revenue derived from non-flight products. Most of the vendors associated with revenue management of flights have launched initiatives to bring ancillary revenue into their scope but it is too soon to draw any conclusions about which of them will be most successful in this new field.