From 19 July to 6 August 2010 I participated in the International Visitors' Leadership Program in the United States, a three week study programme principally examining US policy on climate change. The costs of meals, travel and accommodation within the US, and occasional expenses, were met by the US Department of State Cultural Affairs Division (of 2201 C Street NW, Washington, DC 20520) to a total of $8,100 which, on 19 July 2010, was equivalent to £5,316. The costs of travel to and from the US were met by me.

I am a Vice-President of the European Movement in Scotland. This position is unpaid, and I receive no other benefits from it. [Registered 23 June 2021]

I am a member and supporter of the Poverty Alliance.

I received a donation of £500 toward election expenses for the 2021 Scottish Parliament election, from the National Union of Rail, Maritime and Transport Workers.

I received a donation of £500 towards my election expenses for the 2011 Scottish Parliamentary election from the Fire Brigades Union Scotland.

I am an associate member of the National Union of Journalists.

On Friday 2 May 2014 I was given a bottle of Referendum Blend whisky by the Good Spirits Company, of Bath Street, Glasgow. The retail value of this gift was £69. This gift was given after I had participated in a launch event for the whisky.

I am a member of the European Parliamentary Forum on Population and Development (generally referred to as EPF), a networking organisation of parliamentarians from across Europe, including but not limited to EU member states. During Sessions 2 and 3 of the Scottish Parliament I participated at a number of conferences and study visits organised by the EPF, generally funded through the UNFPA or national family planning and sexual health agencies.

I am a member and supporter of the Humanist Society of Scotland.

I am a member and supporter of the Campaign for Real Ale.

I am a member and supporter of the Campaign Against the Arms Trade.

I am a supporter of Stonewall Scotland.

I am a member and supporter of Amnesty International.

I am a member and supporter of the Equality Network.

I am a member and supporter of Greenpeace.

I am a member and supporter of Friends of the Earth Scotland.