For instance, if you describe a service and want users to create an account, "sign up" is better than "start now!"

例如，如果你描述了一种服务，需要用户注册一个账户，“注册”比“就从这开始吧！”

youdao

Snip.it users can log in via Facebook or create an account.

WSJ: Snip and Save or Put a Pin in It: Two Ways to Share Web Faves

The CAPTCHA--that much-loathed image of distorted words and numbers found on some Web pages that users must type in order to create or access an account or post a message.

FORBES: Magazine Article

After signing up for an account, users can type in the names of favorite bands, and Pandora will create a customized radio station that spins similar songs.

CNN: Pandora eyes global market, talk radio