Final answer:
IM and chat messages form a record of communication, but excessive reliance on messaging can result in weaker relationships.
Step-by-step explanation:
IM and chat messages form a record of communication between individuals. These types of online communication, such as text messaging and instant messaging, have become the primary means of communication for many people.
While they are convenient and allow for constant contact, research has shown that an excessive reliance on messaging instead of voice conversation can result in weaker and less satisfying relationships overall.