You just finished writing a piece of marketing material (email, sales letter, etc.) and would like an unbiased expert opinion and suggestions on how to make it better.
An online service where you can get an expert’s opinion and suggestions on what to change to make it better. You can get service at different levels, from a basic one where the expert just analyzes the text without much interaction with you, and up to a full service with background and competitive analysis.
Wouldn’t it be interesting if we could look at other people’s notes and what they highlighted while reading a certain book?
Allow people to add their own notes to listed books (and add new books if they are not yet listed), and keep them in a central repository online. Everything should be indexed and searchable.
Being exposed to people talking in the language you want to learn helps you embed the language.
Have a central listing of online radio stations categorized by language, region, and level of language used (for beginners, more advanced etc.)
You may want an online persona for many reasons (not just the illegal ones.)
Have a service that sells such pseudo personas that were either previously already created or were created to order in a short amount of time. You can choose how elaborate is the persona: profiles of social networks (Facebook, Twitter, LinkedIn etc.), how many email addresses, phone numbers, bitcoin wallet etc.
Grab attention and stand out.