Salesforce.com is raising US$500 million which has started speculation about potential takeover targets. As advanced email marketing is an area Salesforce.com hasn’t approached this could be their focus.

So which email marketing platform could Salesforce.com buy? I’ve only included SaaS solutions which have a B2B email marketing offering and lead management.

1. Aprimo
2. Eloqua
3. Marketo
4. Silverpop

Do you have a view on these four B2B email marketing vendors? Please comment below.