I’ll start with this blog entry a session of business ideas, which come up near me… which I cannot pursue at the moment, but are maybe interesting for others.

Tagline: Offer spare time activities to people planning a trip fitting to their interests and their personal time planning.

Technology: Mashup of APIs used from travel planning tools (like tripit.com or dopplr.com ) and crawled/stored information about events, touristic activites etc.  based on user profiling e.g. from Facebook Likes.

Business models: mainly affiliate model (bringing guests to organizers of events/tour organizers)

Martin Hepp ( @mfhepp ), the author of the GoodRelations vocabulary for eBusiness, just posted a cookbook entry to show how business entities offering travel activities (outdoor, concerts etc.) can publish this information in a machine-readable way.

(I think) for this reason he defined the Ticket Ontology to describe events, activities and their business impact.

But for the time being (as long as not many travel organizer make their activities machine-readable) a crucial technical part is the collection of travel activites and making / keeping connections with these business entities offering activities.

Even this idea can make use of BigData analysis techniques: you can initially optimize and later predict, which kind of activity is attractive to which group of users. (a use case of customer segmentation).