Upcoming (formerly Upcoming.org), the social event calendar website that launched in 2003, founded by Andy Baio
Breathtaking can also be spelled breath-taking.
No, but it can be spelled "hard tack" with a space.
close by or close-by
followup This word spelled as is does not come up on Answers.com spell check. Followup is not hyphenated.
How to Use Hyphens and Dashes
Adobe Creative Suite 2 - How to Adjust Leading, Kerning, Spacing and Alignment