can you tell me a few good strategies to win a game of settlers of catan?
Certainly! Here are a few effective tactics for winning Settlers of Catan:

1.  Build and expand settlements early on to secure resources and increase your points.
    
2.  Focus on upgrading settlements to cities as soon as possible, as this will significantly boost your point total.
    
3.  Establish and maintain strong trading partnerships with other players to ensure a steady supply of resources.
    
4.  Keep an eye on your opponents' builds and try to block their expansion plans.
    
5.  Try to hold onto a longest road or largest army card, as they offer substantial bonuses.
    
6.  Make smart trades with other players, especially when acquiring the resources needed to upgrade settlements to cities.
    
7.  Be proactive in seeking out and trading for valuable development cards.
    
8.  Plan ahead and think several moves in advance to make the most of your resources and position on the board.
Is there an online community? Can i play it online with strangers?