Check out the following links to external organisations for more info, advice and ideas:
Stonewall http://www.stonewall.org.uk/
The Lesbian and Gay Foundation http://www.lgf.org.uk/
International Gay and Lesbian Youth Organisation http://www.iglyo.com/
Educational Action Challenging Homophobia http://www.eachaction.org.uk
Equal Marriage http://www.equalmarriage.org.uk
Equality Challenge Unit http://www.ecu.ac.uk
Gender Identity Research and Education Society (GIRES) http://www.gires.org.uk
Broken Rainbow http://www.brokenrainbow.org.uk/
Gendered Intelligence http://www.genderedintelligence.co.uk
International Lesbian and Gay Association (ILGA) http://www.ilga.org
LGBT Consortium http://www.lgbtconsortium.org.uk
LGBT History Month http://www.lgbthistorymonth.org.uk
Press for Change http://www.pfc.org.uk
National AIDS Trust http://www.nat.org.uk
Terrence Higgins Trust http://www.tht.org.uk
UK Lesbian and Gay Immigration Group http://www.uklgig.org.uk
World AIDS Day http://www.worldaidsday.org
The Equality Network http://www.equality-network.org/
LGBT Youth Scotland http://www.lgbtyouth.org.uk/