The day has come when the worlds of Dunbar’s number (which I love/respect/believe in) and my LinkedIn connections coincide! It’s been a tricky 24 hours, when the LinkedIn counter hit 149 – and my commitment and belief in Robin Dunbar’s number (150) collided.

Typical of my active and creative mind, I tried to find several routes around this:-

1. Find a justification for not complying to Robin’s thinking… Well – I’ve just been reading Chris Brogan and Julien Smith’s Book “Trust Agents”. On page 226 they give me the perfect opt out by saying “The Web allows us to work within Dunbar’s number. It means that we can build business relationships in different ways: Instead of just locally or in a specific vertical, we can channel and stripe and slide in many different ways.” Read more on Chris’s blog. Great – I can have 150 people in lots of different places!!

2. Can I increase the number from 150?… Amazingly, the FT Weekend came up with just that. Page 30-31 of the Money Section last weekend had an article entitled “Build your connections, but go for quality, not quantity.” I can now safely increase my 150 to 250 … yipee. “Andy Lopata, who has built a business advising others how to network, claims that in an age of mass social networking, too many people concentrate on the quantity of connections they make rather the quality. “It is who needs you and what they say about you that counts, and that only comes from building better relationships, not necessarily more relationships,” he says. Lopata recalls a speaking engagement last year, where someone showed off the 2,000 contacts on his Blackberry address book. Lopata was not impressed. “My response was: ‘If you phone those 2,000 people, are they willing to take your call?’ If not, then you are just carrying around a telephone directory.” A philosophy that drives Lopata’s thinking is the Law of 250, the idea that there is an optimum number of contacts to acquire. The concept was made famous long before the advent of LinkedIn and Twitter by Joe Girard, an American salesman who earned a place in the Guinness Book of Records for his prowess at selling Chevrolet cars. Lopata admits that his own database of 4,000 contacts is too big, but qualifies his support of the Law of 250 by noting that good networkers also have a broad range of contacts. “You have to get the balance right,” he says.” Thank you Andy Lopata and Joe Girard – I can have another 100 connections!!!

3. Quit while I’m ahead/Go out with a bang… What better way to go – than to make your 150th connection on LinkedIn ….. ROBIN DUNBAR!! Well, I penned a small invite (my very first on LinkedIn to someone I did not directly know). Amazingly, Robin has only ONE connection on LinkedIn – go figure!!

The result was…. I received a reply back to my LinkedIn invite from the lovely Kathryn York. I’d invited Kathryn a month ago – and she finally came back to me to pop in as my number 150 connection! I am delighted. Kathryn is the Archivist at Wolfgang’s Vault in San Francisco. We met when she showed my son and myself around their music, video and art archives at Easter when we were stranded under the Ash Cloud. If you ever want to know about music from the 60s/70s/80s in the US – this is the lady!

Kathryn’s reply to my request to be a connection (and if she used LinkedIn much) was eloquent – “I don’t use Linkedin much, or my twitter or my facebook and myspace hasn’t seen me in so very long… I do know that folks find all of this does help with connecting (kind of like if I’d ever answer that ringing home phone), so I say thank you for reaching out and I shake your virtual hand with a connection acceptance!” Having a great Personal Network is a lot about diversity – and I’m very happy to have Kathryn in my 150!

I will await to see if Robin becomes my 151st connection (and his second) – but for now I will continue to extend my network onwards (and upwards from 150) with diverse, fun, stylish connections like Kathryn.