Richard Dawkins proposed tracking the health of memetics by tracking citations of the idea in learned journals - in the second edition of
The Selfish Gene.
I plotted such references in a 2008 article titled:
Memetics death report exaggerated.
I revisited Google Scholar and made another plot today. This time I used "memetic OR memetics" as my search term, which seems to be the most reasonable thing to search for to me.
Here are the results:

As before, it is best to ignore the last couple of years: Google hasn't indexed all the papers from those years yet.
This time I also did a "control" plot: I searched for "gold":

Here's my raw data:
Year | Memetics |
1990 | 15 |
1991 | 14 |
1992 | 24 |
1993 | 28 |
1994 | 40 |
1995 | 50 |
1996 | 70 |
1997 | 93 |
1998 | 187 |
1999 | 264 |
2000 | 303 |
2001 | 408 |
2002 | 538 |
2003 | 648 |
2004 | 819 |
2005 | 1010 |
2006 | 1220 |
2007 | 1460 |
2008 | 1800 |
2009 | 2020 |
2010 | 2580 |
2011 | 2570 |
2012 | 42 |
|
Year | Gold |
1990 |
102000 |
1991 |
113000 |
1992 |
123000 |
1993 |
133000 |
1994 |
147000 |
1995 |
172000 |
1996 |
188000 |
1997 |
211000 |
1998 |
242000 |
1999 |
277000 |
2000 |
304000 |
2001 |
304000 |
2002 |
349000 |
2003 |
374000 |
2004 |
418000 |
2005 |
428000 |
2006 |
373000 |
2007 |
372000 |
2008 |
300000 |
2009 |
257000 |
2010 |
164000 |
2011 |
110000 |
2012 |
7660 |
|
Others on the internet seem to be noticing downturns in recent years too. For example, this guy appears to have concluded that we are at "peak haplotype" - on similarly flimsy evidence.