Is there a way to show users who commonly opening / clicking into email or viewing website ?

Welcome to the Nation!

First, let’s tighten up some terminology. You don’t want to say “Users” here. You want to say “People” — or, as many of us old-school people say and the platform still uses in lots of places, “Leads”. Users log in to your Marketo instance, you don’t market to them.

To your question: “commonly” is a vague requirement, but you’ll want to create a Smart List with filters like:

• Clicked Email, constrained by Date of Activity and Minimum Number of Times
• the same for other activities, remembering that web activities are only stored for 90 days
  

When you mention “for a certain topic” that depends on your naming conventions. The actual content of an email will not be filterable. Nor (unfortunately) will be the Tags on a Program that sent or contains an email.

P.S. I also like to remind people that when you use a similar SL to determine inactivity (i.e. people who you might purge), you want to make sure you’ve also given them a chance to engage within a time period. That is, you wouldn’t necessarily punish someone for not engaging in 90 days if you’ve messed up your filters and haven’t even sent them anything in 90 days. (There are of course situations where inactivity is a direct proxy for having received communications + not engaging, but that relies on running a very tight operational ship.)

You can use "Opened Email", "Clicked Link In Email" and "Visited Web Page" filters in a smart list and add apt constraints in the filters, including the "Min. Number of Times" constraint to filter out people who engaged with the respective assets > the set threshold of what you'd classify as a significant number of opens/click email CTAs/visits. Also, if you have RCE, you can add in a lot more measures/rows to get more insightful data than a Marketo SL!

FYR, Marketo logs an Open activity only 1x for a person-email combo, so you'd need to be cognizant of that and the open/click activities from email scanners while using these metrics for gauging the engagements/performance of assets. Lastly, a smart list queries data from the lead activity logs, so you should also consider the retention periods of these activities as well. Check out the Marketo retention policy doc here! Hope this is helpful. Let us know if you have questions.

There's already a good conversation going on several practical aspects of Marketo's capabilities, but I would like to zoom out a little bit here and challenge the usefulness of what you want to achieve. As is documented in many posts on the nation, actual email opens are a very poor indicator of actual human behaviour. An Open only means the images have been downloaded, but this could easily have been an email server doing this, so is no indication at all of the person having encountered the content.

Email clicks are a different topic, as long as you are making an effort to effectively recognize bot activities and leave them out of the equation. If you do this diligently, email clicks are actually an indicator of human behaviour.

In general, my best advice for having an indicator of a person's level of engagement is to implement lead scoring, where every active interaction (ranging from email clicks and web visits to event registrations and content downloads to name a few obvious ones) is awarded a score that reflects the value of the interaction in relation to the person's buying intent.