The document discusses how to achieve viral growth for a product or service. It explains that viral growth is measured by multiplying the invitation rate by the acceptance rate. The invitation rate is the number of new invites generated by existing users, while the acceptance rate is the percentage of invites that result in actual sign-ups. It stresses that to be truly viral, a product needs a high invitation rate and a sizable acceptance rate in order to exponentially grow over time through word-of-mouth sharing. It provides tips on compelling users to share by appealing to their emotions and self-interest, and making the sharing process easy.
2. VIRAL GROWTH IS MEASURED AS:
I N V I TAT I O N R AT E * A C C E P TA N C E R AT E
3. I N V I TAT I O N R AT E I S :
T H E N U M B E R O F N E W I N V I T E S G E N E R AT E D B Y
EXISTING USERS
!
S O , I F Y O U R 1 , 0 0 0 U S E R S G E N E R AT E 2 , 0 0 0 N E W
I N V I T E S , T H E N Y O U Y O U R I N V I TAT I O N R AT E I S 2 . 0 .
!
I F, O N T H E O T H E R H A N D E A C H 1 0 0 0 U S E R S
G E N E R AT E O N LY 5 0 0 N E W U S E R S , T H E I N V I TAT I O N
R AT E I S O N LY 0 . 5
4. A S Y O U M AY H A V E G U E S S E D , T H E
A C C E P TA N C E R AT E I S T H E N U M B E R O F
A C T U A L S A L E S / S I G N U P S / E T C . G E N E R AT E D
BY THE AFOREMENTIONED INVITES.
!
S O L E T ’ S S AY T H O S E 2 0 0 0 I N V I T E S R E S U LT
I N 5 0 0 N E W S I G N U P S . T H AT M A K E S T H E
A C C E P TA N C E R AT E A R O U N D 0 . 2 5 .
!
A N D T H O S E 5 0 0 I N V I T E S R E S U LT E D I N 4 0 0
N E W S I G N U P S . T H AT M A K E S T H E
A C C E P TA N C E R AT E A R O U N D 0 . 8 0 .
!
5. I N V I TAT I O N
R AT E
A C C E P TA N C E V I R A L G R O W T H
R AT E
R AT E
SCENARIO
1
2.0
0.25
0.5
SCENARIO
2
0.5
0.8
0.4
IDEAL
2.0
0.5
1.0
6. VIRAL GROWTH IN ACTION
VIRAL COEFFICIENT OF 1 VS. 0.5 - 12 MNTHS
300000
225000
150000
75000
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
7. TO MAKE A PRODUCT OR SERVICE
V I R A L , Y O U R E X I S T I N G U S E R S H AV E T O
G E N E R AT E A L O T O F N E W P O T E N T I A L
U S E R S , A N D A H I G H P E R C E N TA G E O F
THOSE POTENTIAL USERS NEED TO
CONVERT TO ACTUAL USERS
29. P I C K O N E S T R AT E G Y,
A N D D O T H AT
E X C E E D I N G LY W E L L
!
30. EXAMPLES:
!
- LINKEDIN WITH EMAIL
- D O L L A R S H AV E C L U B W I T H
YOUTUBE
- WUFOO WITH HANDWRITTEN
CARDS
- P I N T E R E S T W I T H FA C E B O O K