FaceBook does have "pluses" to your life like, finding old friends from the past, staying in touch with family members you don't get to see very ofter or friends, post and share videos, pictures, music, poems,etc.. that you may think they have some type of value, but at the same time FaceBook has many negatives sides to it.
One of the worst things about FB, I think, might be finding something you had not wish to find, like a lie. You ask your friend for a favor, or maybe you are trying really hard to make them answer the phone, or an e-mail and you get the typical response "I have been way too busy, I'm sorry" when in fact you get on FB and see that they have been clubbing, partying, or spending hours and hours glued to the screen of their computer checking FB because that is what we do. How about the way we use language in FB all the "brb" and "lol" are getting to us, I have witnessed it myself many times, we are lacking in spelling words so we abbreviate many words like "hmu" which by the way means "hit me up" and "by the way" means "btw" and many more, I will give you a list of the many abbrebiated words in "FB" which of course means "FaceBook".
2d4 - To die for
4COL For crying out loud
^5 - High 5
99 - Parents are no longer watching
AYT - Are you there
B4 Before
BBL - Be back later
BRB - Be Right Back
BCUZ or CUZ- Because
BFF - Best friends forever
BI5M - Back in 5 minutes
BCNU - Be seeing you
BIL - Boss is listening
BTWN or B/W - Between
CID - Consider it done
CIL - Check in later
DEGT- Don't even go there
FWIW- For what it's worth
FYEO - For your eyes only
GF - Girlfriend
GFTD - Gone for the day
Gr8 - Great
GtG or G2G - Got to go
HaND - Have a nice day
HBU - How about you?
IGU - I give up
ILY - I love you
IMO- In my opinion
JaM - Just a minute
JJ - Jusk joking
JK- Just kidding
K - O'kay
And of course the list goes on, and on, and on, and at it goes on the list gets even more ridiculous, but this is just a side problem, let's be honest we are all starting to use these abbreviations, I use them some times, the text part is probably the least of the problems that FB causes. I think personality changes could be another issue dealing to FB, you are now seeing people post and say things in FB that you don't see very often in an everyday life. You see people posting things that they normally would not associate them self with like, "like marijuana" and "drinking and drugs are cool", that right there is a problem for viewers. Not everything of course is bad but you also see teachers being fired from their job because of opinions that they feel free to post in their FB wall for example, Jerry Buell, a high-school
teacher from Lake County School in Florida was suspended for posting
his opposition to New York’s new gay-marriage law. Jerry had with a record report that was impeccable for 22 years and he ended up losing his job. If that's not enough then the biggest problem with FB is cyber bullying which is a very serious topic not only because it emotionally hurts but also because many kids, teens, and adults have ended their life due to bullying on FaceBook. It is serious, it is dangerous, and it needs to stop. I believe Mr. Mark Zuckernerg AKA (which means Also Known As) Mr. Z, to me, did not create this powerful social network with the intention of ending people's lives, he might have created it out of rage, but what he tries to portrays everyday (from what I see in his wall) is to enjoy FaceBook in a healthy and harmless way because all he wants us to get out of it is comfort and security, and also the opportunity to stay in touch with our loved one while also having some fun in the Internet and expanding our knowledge of social networking.