Here are some sample searches:
1. Journalism AND ("tablet computers" or "mobile communication" or "wireless communication" or "cell phone" or "cellular telephone" or smartphones or iphone or "camera phones")
2. Journalism AND (Google or Facebook or Twitter or YouTube or "social media" or "online social networks")
3. Journalism AND apps
4. "Online journalism" and "social media"
Recommended for class:
Other sources:
Some sources to follow in social media: