How do I identify predatory and low quality journals? With Beall's List gone, how can I tell if a journal is spam? Jeffrey Beall removed his list of predatory journals from the internet this past Sunday. While the reasons for his doing this are not yet public, this is a real loss of a valuable service. Does anyone know of similar services available to the general public?

Edit: This other question is definitely relevant, but that approach is more appropriate for finding top journals rather than identifying bottom ones. I.e., following that method would probably exclude lots of valid, lower-tier journals. Are there any approaches to easily identifying a predatory publisher?
I heard about Beall's list several times on this site, but I'm amazed about its significance to some people.

When you start doing research, you need to know which papers are important in your field (your advisor or google scholar will tell you). Then you need to know who is the big shots, and not so big shots in your field. Then you need to know where those guys have published their papers (where your advisor published his/her papers).

Then follow the masters, submit to the conference/journal that they published. If it is a new conference/journal, you need to know some people in the PC members, editors.

If you know none of them, it's not a good idea to submit your paper. In the best case, they are not in your field. Even if you don't know them, you can check if they are from reputable university, if they have well-cited papers to become editors?

Another way is to check 5 papers published by this journal 5 years ago. If none of them has any citations, that journal is spam.

TL;DR: You don't need any list.