Twitter said more than 11,000 tweets, containing the hashtag #ThumbsUpForStephen, have been posted within an hour this morning.
People took to twitter to share their support and give their 'thumbs up' in honour of the cancer campaigner Stephen Sutton, from Staffordshire.
Within a day more than 18,000 tweets have been posted while a vigil for the teenager, who raised over £4 million for the Teenage Cancer Trust, is being held at Lichfield Cathedral.
Those who have tweeted so far included comedian Sarah Millican, Dragons' Den star Kelly Hoppen and actress Shobna Gulati.
More than 10,000 people joined Stephen Sutton's family and friends in paying an emotional farewell to the inspirational teen cancer victim.
We were inundated with responses after asking our Facebook readers to post 'thumbs up' pictures in tribute to Stephen Sutton.
Mourners turned out to celebrate the life of teenage cancer victim Stephen Sutton as the fund he launched topped £4 million.