Suppose that you want to rank for two keyword phrases that mean the same thing but are slightly different in spelling. When should you put both keyword phrases on one page versus two pages? What are the pros and cons?

Is 100 total links for every linking domain too high? I suppose I could also look at ratios of sites that are doing well in the rankings.

I recently launched a trial of a retargeting campaign but after a month I have only 100 impressions and 0 clickthroughs. I am working in a competitive space but I placed a relatively low bid because I read that retargeting campaign banner ads should cost less. The number of people who have been added to the retargeting list by visiting the site is under 10,000. What do you think is most likely to be the problem causing a low number of impressions and clickthroughs? Can a retargeting campaign be successful with a small audience size?

Suppose you have a page on your site that is a couple thousand words long. How would you determine when to split the page into two and are there any SEO advantages to doing this like being more focused on a specific topic. I noticed the Beginner's Guide to SEO is split into several pages, although it would concentrate the link juice if it was all on one page. Suppose you have a lot of comments. Is it better to move comments to a second page at a certain point? Sometimes the comments are not super focused on the topic of the page compared to the main text.

One line of thinking is that you can not have too many words on a page because the more words you have the higher the chances that a long tail phrase will attract traffic. But can you go overboard with this? Is there a limit to the number of words on a page in terms of SEO?