Unfortunately u have to get out there & search, troll the streets kind of thing, many many people are out of work that rely on a wage to keep them thro out the year not just for summer, there can be 100 of apps for 1 job and the employer gets the cream of the bunch, especially as the un employment rate goes up with the recession. Fear not i got a job in the last recession just coming out of school - so beleive theres still hope
But means u will have to put yourself out there much more & be persistant, as much as people will post about vacancies being available that is very few & far between with many more people like yourself posting here to find work.