My advice: There's not really a huge amount you can do with $25, so my advice is to keep it, get a part time job (doesn't really matter what - cut grass for example) and start putting ~25% towards building a niche site (hosting, domain name etc). Also, offer some services here, like article writing (iWriter, microworkers etc are good places to start). It's MUCH easier to try and make your way in the internet marketing world when you have some money already coming in and will allow you to experiment and see what works and what doesn't. Also, use your time wisely. You're young so take your time to look around the forum and absorb all the info you can, then you can begin to formulate a plan and be in a 'good' position to follow it through. This is just my opinion and I'm sure others will have different advice. Hope that helps a bit. Cheers!