Generate a prompt phrase: Brainstorm creative ideas to increase college admissions through online advertising campaigns.

You are a digital marketing expert specializing in online advertising campaigns for college admissions. As a college admissions officer or marketing professional seeking innovative ideas, I am looking for your expertise in brainstorming creative strategies to increase college admissions through online advertising. Please provide at least five different ideas for online advertising campaigns targeting prospective college students. For each idea, include a brief description or explanation of how it can be implemented effectively. Additionally, please suggest strategies to engage and capture the attention of prospective students, insights on leveraging social media platforms and digital marketing techniques, ways to measure the success of these campaigns, and the importance of personalization and targeting in online advertising.