In the past, I have offered a variety of benefits to the sites I am contacting. Here are a few I can think of off the top of my head:
- 
Relevant and original blogs or articles 
- 
sharing their site or advertisement on social media profile 
- 
writing a testimonial for businesses or individuals that I have worked with 
- 
"how-to" articles 
- 
Infographics or visual guides 
- 
Bringing typos or broken links to webmaster's attention 
- 
A reciprocal link 
