Some known libraries:

  IoFileMgrForUser
  Kernel_Library
  LoadExecForUser
  ModuleMgrForUser
  StdioForUser
  SysMemUserForUser
  ThreadManForUser
  UtilsForUser
  sceAtrac3plus
  sceAudio
  sceCtrl
  sceDisplay
  sceGe_user
  sceLibFont
  sceHttp
  sceMpeg
  sceNet
  sceNetAdhoc
  sceNetAdhocctl
  sceNetAdhocMatching
  sceNetApctl
  sceNetInet
  sceNetResolver
  sceOpenPSID
  sceParseHttp
  sceParseUri
  scePower
  sceRtc
  sceSasCore
  sceSsl
  sceSuspendForUser
  sceUmdUser
  sceUtility
  sceWlanDrv