AJAX and data push make beautiful music together. The value is two-fold: customers get useful, attractive interfaces while ensuring that the data in question — be it numerical or even headline news — arrives on their desk fresh, crispy, and with little latency.

Lightstreamer provides a push engine for data distribution that sends information to any compatible browser. They have four products, seemingly named after Starbuck’s drink sizes (Moderato, Allegro, etc.) The heaviest package, Vivace, includes SDK for web client and .NET developm,ent along with unlimited concurrent users and thick or zero client support, depending on your in-house needs.

The software is free on a trial basis while pricing depends on the implementation (”One Moderato, please, my good man!”) and number of seats.

Product Page