Big tech dominance 'worrisome', says CMA boss. Video, 00:01:16Big tech dominance 'worrisome', says CMA boss
Kim Kardashian West joins social media boycott
Labour joins Facebook advert boycott
Tech Tent: Facebook's ad agony
Is Facebook losing the boycott battle? Video, 00:04:41Is Facebook losing the boycott battle?
Zuckerberg: Advertisers will be back 'soon enough'
Coca-Cola halts social media ads over hate content
Facebook to tag ‘harmful’ posts as boycott widens
US phone giant Verizon joins Facebook ad boycott
Ben & Jerry's joins Facebook ad boycott