1- Digg
2- Stumble Upon
3- Redditt
4- Jump Tags
5- Diigo
6- Delicious
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9- Technorati
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29- Kwoff
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32- Ziki
33- i89
34- Lookmarks
35- Stylid
36- Marathikatta
37- Diggma
38- Connect Galaxy
39- Chillbookmarks
40- Segnalo
2- Stumble Upon
3- Redditt
4- Jump Tags
5- Diigo
6- Delicious
7- Mister Wong
8- Slashdot
9- Technorati
10- Scoopeo
11- Shoutwire
12- Chime
13- Newsvine
14- Simpy
15- Blinklist
16- Netvouz
17- Connotea
18- Folkd
19- Zigtag
20- Buddymarks
21- Linkagogo
22- Indianpad
23- Thoof
24- Corank
25- Dropjack
26- Bizsugar
27- A1webmarks
28- Givealink
29- Kwoff
30- Newsmeback
31- Oneview
32- Ziki
33- i89
34- Lookmarks
35- Stylid
36- Marathikatta
37- Diggma
38- Connect Galaxy
39- Chillbookmarks
40- Segnalo