I don't know the Historious team at all, so I can only comment on what I see. I saw Pinboard, Diigo, Evernote and Licorize working to take advantage of this (l

I don't know the Historious team at all, so I can only comment on what I see. I saw Pinboard, Diigo, Evernote and Licorize working to take advantage of this (like getting mentions, actively posting on blogs, answering questions in Quora - all the things we've been doing) but never really saw Historious doing the same. The other thing (yes I'm biased) is that I think Historious isn't the same as Trunk.ly - Historious is a Delicious replacement service that builds these features on. The attraction to users is that it's Delicious plus. What we're trying to do with Trunk.ly is rethink how the whole bookmarking experience should work. So yes, we took advantage of the cut through we could achieve by positioning against Delicious, but in reality our market is not frustrated delicious users (which is kind of where I think Historious is placed). There's been very deliberate design decisions to resist at the moment some things that Delicious users think are critical. We're trying to bring bookmarking back to the mainstream audience who left Delicious behind a long time ago and moved on to social sharing in Twitter, Facebook and others. While functionally there are similarities (how many ways can you bookmark a link), from a positioning and direction point of view we believe we are different and have a different vision. From a coverage perspective we have a simpler positioning and broader "mass" appeal, which is likely to be more attractive to a larger blog property. Here's an example of what our press release says "Trunk.ly is a service that hooks into your online social networks, collects all the links you share then builds a personal search engine of the web page those links point to." Not once in there do we actually describe ourselves as a "bookmarking" service, although that does get written about us by others. So it could also be a bit of differentiation.