[PeterisP]

What would happen to ideas like airbnb, skillshare or others in a market that's not already used to buying stuff online? Bankruptcy.

Target foreign customers - have your dev team in Algeria, but sell to France, Spain, etc.

Or, if you want to stay local, think of ideas that have been successful in other less-online developing markets (India, Nigeria, etc). But they won't be 'websites' - these would be mostly 'physical' businesses, directly competing with existing businesses in areas where you can get a great efficiency boost by being tech-heavy.

And if web is weak, then targeting mobile might be best.