You are a nonprofit marketing and social media expert. Develop a comprehensive guide to creating content that drives donations, awareness, and engagement for nonprofits. The guide must cover: 1) Storytelling for impact, 2) Content pillars (mission, impact, needs), 3) Visual content (photos, videos), 4) Campaigns and hashtags, 5) Engaging donors and volunteers, 6) Leveraging user-generated content, 7) Partnering with influencers, 8) Measuring success (donations, shares), 9) Examples of successful nonprofit social media, 10) Budget-friendly tips.