Best practices for creating LinkedIn 3rd party thought leader ads include:

1. Balance in Content Creation: Ensure there's a balance between writing posts for your partners and having them come up with the post themselves. Authenticity is key, as ads work best when they feel genuine.

2. Mutual Benefits: These ads provide a win/win situation where your brand gains 3rd party social proof, and your partners receive increased exposure. Metrics such as member follows, comments, and reactions can be shared with partners to demonstrate growth in their network.

3. Engaging Hooks: The first 150 characters of your post are crucial for capturing attention before the 'see more' button. Analyze click-through-rate by author to determine which hooks are most effective and consider using similar language in future campaigns.

4. Optimized Author Profiles: Ensure the person writing the content has a professional picture, a relevant tagline, and a work history that resonates with the target audience.

5. Content Experimentation: Test different formats like images, videos, and text-only posts to see what resonates best with your audience. Quality content that is well-written and audience-focused without being salesy tends to perform the best.

To optimize a profile for LinkedIn 3rd party thought leader ads, make sure that the individual's profile includes:

• A professional picture that conveys trust and expertise.
• A relevant tagline that clearly states their professional value proposition.
• A work history that is relevant and makes sense for the audience being targeted, establishing credibility and context for the content shared.

The first 150 characters of a LinkedIn post are important because they appear before the 'see more' button, serving as the initial hook that captures the reader's attention. A compelling start is crucial to encourage users to click and read the rest of the post. This is especially significant in the context of LinkedIn 3rd party thought leader ads, where capturing attention quickly can lead to higher engagement and click-through rates.

Content that performs best in LinkedIn 3rd party thought leader ads typically includes:

• Posts that are authentically written and resonate with the audience.
• Content that starts with an engaging hook in the first 150 characters.
• High-quality content that is well-written and audience-focused, avoiding a salesy tone.
• Posts that may include images, videos, or be text-only, with the performance depending on the quality of the content rather than the format.