I think this is the problem! I checked and found that Google thinks I have double the pages now.  Maybe they are thinking I have duplicate content.  I will fix this asap. THANK YOU!!!

"Internally, you should also avoid linking to 301 redirects. Link straight to your final URL. For example you link to http://www.homespellingwords.com/About (capitol A) but it redirects to http://www.homespellingwords.com/about (lowercase a). This hurts crawl efficiency and reduces how link authority flows through the site. This happens a LOT on your site, so update all your links,"

Thanks.  That's good information.  I have to say, I really dislike the huge ad on the right.  I kept getting emails from Google saying that I don't have enough ads and that they should be bigger.  So, I gave in and put bigger ads and three per page as they suggested.

I did actually move the main ad down a bit below copy, which it used to be right up top before any copy.  I also removed an anchored ad in mobile that sat at the bottom of the page no matter what.

Is it possible that Google asked me to do something (more and bigger ads) and then punished me for it?

My bounce rate is lower than it has ever been so I don't think users are put off.  I'm sure some of my problem is ad blockers and lower click through on mobile ads as mobile traffic increases - but that is not my immediate problem - that's a long slow decline of income.

I think I will play with the ads and also see about the new information on adsense about how much ad is visible as I am sure that will have an impact on future revenue too.

I agree.  I checked and found that I got much less traffic than last year though.  Thanks for answering!  My traffic really dies on holidays.

I guess that would at least make me feel better in that it's not something I did wrong.  Thanks for responding.  I feel like my site became invisible.  I hope traffic comes back!

Thanks for your help. My url is www.HomeSpellingWords.com.  I've been tracking my ranks in Moz and it seems like my site is getting a little better every week.  However, my page views are steadily dropping, while my rank remains the same or better.  The CTR for ads has not changed much.  It's almost like I'm ranked but invisible?  Anyway, I rank fairly well for many good keywords like spelling words, 1st grade spelling words, 2nd grade...etc and so forth.  I've never done any kind of strange link building - was too busy and maybe too lazy.

When I think about this problem, it seems like I'm there (ranked) but invisible???

I need to get an imgur account - will upload images if I can find some that make sense.

Lately my organic traffic has dropped significantly as well as my adsense revenue.  The moz report says, for example, my traffic is down 40%, but I a still #1 for that keyword.

Also, in the last week, suddenly my number of indexed pages doubled.  We had done some page rewriting and maybe messed that up.  We've fixed that though.  Webmaster tools is still picking up all of our old pages and the new ones.

Background:

1. We recently launched our new responsive website in March.
2. March income was about the same as February.
3. April dropped off suddenly (maybe late march - no sure)
4. When we changed site, we did do 301's for all the old pages to the new ones

Any ideas or advice as to why my traffic and revenue has dropped off so sharply? Never submitted questions before - not sure if I am supposed to put urls here so if you just google Home Spelling Words - that's my website.  Thanks everyone!!!