The best stories across the web on media and technology, curated by Lily Leung

1. What Google could lose with the introduction of Apple Maps (Business Insider)

2. More than half of tablet users watch video on devices at least once a month (Multichannel News)

3. Twitter runs its first TV ad in Nascar race (CNET)

4. Career advice for young journalists (The Buttry Diary)

5. Ethical decisions journalists may face on Facebook (Poynter)

6. The qualities of a perfect tweet (NYT)