1. Google plans to boost cloud business to catch up to Amazon, Microsoft Full story

2. What Facebook's news feed change means for businesses Full story

3. Dropbox files for IPO Full story

4. Microsoft restores bitcoin payments Full story

5. Chinese billionaire boosts stake in CHS to 24%, continues to support company's turnaround plan Full story

6. Pfizer to cut 300 jobs, end drug research for Parkinson's and Alzheimer's Full story

7. UnitedHealth's profits more than double in Q4, fueled by one-time tax boost Full story

8. 5 regulatory hoops for tech to jump through in 2018