Callnote is a great program that allows you to easily record Skype conversations and then save the recordings to your Evernote account.
The program features: record up to 8 participants, send recordings automatically or after review to an Evernote notebook, edit call titles/descriptions before saving or after sending to Evernote, automatically saves the names of participants and call details such as time and duration, start or stop recording automatically or manually and alert participants to your recording.
Record audio content on your Mac and export the results to various formats.
IMCapture for Skype (was SkypeCap) captures and records audio and video calls made from Skype.
Call Recorder for FaceTime allows you to record FaceTime audio and video calls.
G-Recorder is a simple yet powerful call recorder.
Record FaceTime audio and video calls directly to your Mac.