Some adjectives go with certain prepositions. There is no real pattern, you need to learn them as you meet them.
about my favorite
How to find a Pen/Chat Friend in Germany?
Frankfurt a.M Deutsch/Englisch Freizeitaktivitäten
German series with subtitles
LanguageLearningBase.com (short: llb.re) is an online community for learning foreign languages.It represents an open knowledge base. Every member can share and gain knowledge about a new language.