Social Effect Ltd appears to be a company with a similar name to The Social Effect Ltd, a B2B marketing agency focused on empathy-led strategies. However, specific details about Social Effect Ltd from the provided URLs are not available. Assuming it might offer similar services, such a company would likely focus on social and creative marketing strategies, targeting B2B audiences. Their unique selling proposition could be an emphasis on empathy and human connection in marketing. Without direct access to Social Effect Ltd's content, this remains speculative.