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Also: StrikeIron has raised $5.5 million in funding, Omgili has a new tool to help you find what's hot in the blogosphere, and HubSpot is making it easier to follow marketing leads.
Get alerts telling you when free or discounted tickets using frequent-flier miles become available thanks to new feature on Yapta, a travel search and management service.
Post-purchase price protection tracking service is good for consumers and retailers.
This browser add-on follows airfare fluctuations so you can get money back if you overpaid for a plane ticket.