In amongst the revelry on St Patrick's Day this Thursday there will be a few pausing on their pints of Guinness to have a moment of silence to mourn the passing of Sidestep.
Thursday 17 March will see the official end of one of the pioneers of travel metasearch when Sidestep-owner Kayak finally pulls the plug on the service, 11 years since its formation in California at the height of the dot-com boom.
"After running a period of user tests, we've decided that the time is right to fully merge SideStep and Kayak. We want to make this change as easy as possible for you (hopefully you like orange)," an email to registered users says.
The decision to divert users to the mothership makes sense given that Kayak is quite clearly the dominant brand of the two and as it heads toward a planned IPO in the coming weeks and months, a process which often leads to streamlining and focusing of strategy.
But the termination of Sidestep as a brand, although pretty much inevitable since Kayak bought the business in December 2007 for what was believed to be around $180 million, marks the end of an era in metasearch in the US, and probably elsewhere.
What many will forget is that Sidestep started life in 2000 as a downloadable application (known as the Sidestep toolbar) to sit on a user's browser window, allowing them to search for flights initially and eventually hotels and car hire.
After launching as a fully fledged website five years later, Sidestep looked like becoming one of the dominant online travel players alongside online travel agencies such as Expedia, Travelocity and Orbitz.
Sidestep launched its first site outside of North America in the UK around the same time.
However, what Sidestep probably didn't count on was the launch and meteoric rise of Kayak around the same time to become yet another competitor alongside Mobissimo, Farechase and others.
But within a year of buying user review service Travelpost, Kayak came calling with a fee the investor roster including Trident Capital and NVP and management clearly couldn't refuse.
Technology being absorbed quickly into Kayak (the UK site was closed almost immediately), some Sidestep staffers continued until January 2011 at a small office in California, but clearly the end was inevitable (towards the end less than 10% of Kayak's total company traffic came through Sidestep).
With Sidestep soon to be a distant memory, perhaps only mentioned in the future during nostalgic late-night fireside chats at industry events, what is its legacy?
It was without doubt one of the early pioneers of travel search, at least in North America. It may have inspired the likes of Kayak, Farecast, FareCompare, Mobissimo et al in the mid-2000s and certainly legitimised the viability of the metasearch sector when it sold for such a high figure to Kayak in 2007.
Its CEO, Rob Solomon, who left shortly after the acquisition and could've faded away into consultancy land actually ended up as president of Groupon.
Meanwhile, Dealbase CEO Sam Shank started out life at Travelpost and went through the acquisition by Sidestep and Kayak.
And, of course, Travelpost was eventually sold by Kayak to a group of Expedia alums who had high hopes of being a major disruptor - although, as became clear earlier this year, perhaps things haven't quite worked out.
Nevertheless, on Thursday this week, as owner Kayak ponders the big world of being a publicly listed company and the industry readies itself for what Google may do if it gets approval to buy ITA Software, Slàinte to Sidestep...