CRM and ERP

ERP (Enterprise Resource Planning)
  SAP
  Oracle e-business Suite
  JD Edwards
  SAGE
  Momentum

CRM (Customer Relation Management)
  Salesforce.com --> Because of cloud computing Salesforce is getting priority
  Siebel CRM --> It came in 1990 It was successful and ruling CRM world during its time
  Peoplesoft CRM --> It came 1980
  Sugar CRM
  Micorosft Dynamics CRM

Salesforce.com Certifications

ADM 201 ( Basic Administrator)
ADM 211( Advanced Administrator)
DEV 401 (Basic Developer)
DEV 501 (Advanced Developer)
Sales Cloud Consultant
Service Cloud Consultant

$200 will be the cost of each certicfiation