Second time appearance, Marc is one of the worlds leading sociologists on the subject for network graphs of people.

Marc and his team have created the most fantastic platform NodeXL used within the social media research foundation for people to utilise the Twitter social graph. They can use it to find the top influencers for given Hashtags. Node XL also all allows you to visualise the social network of these hashtags giving you the change to see what kind of structure the network has.

His Twitter: http://twitter.com/marc_smith
Our previous episode: https://cafe.nikoskatsikanis.com/episodes/marc-smith

References

https://www.bankrate.com/finance/taxes/tax-brackets.aspx