Sponsors Cascade e-Commerce Solutions, Inc. CeSI is a web development business in SeaTac that has been helping business succeed on the web since 1999. Read blog articles about CeSI and their staff. SeaTacPark.com SeaTacPark.com is an off-airport parking lot near SeaTac International Airport offering the ‘best parking value at SeaTac’. Read blog articles about SeaTacPark.com. Be Sociable, Share! Tweet About Elizabeth PaulsenElizabeth, president of Cascade e-Commerce Solutions, Inc., lives and works in SeaTac, WA. Helping small businesses succeed on the web is her specialty. Join Elizabeth on Google+.